Heating AC and Engine Cooling

The three measurements of heat are temperature, specific heat capacity, and heat capacity. Temperature measures the average kinetic energy of particles in a substance, while specific heat capacity is the amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius. Heat capacity is the total amount of heat required to raise the temperature of a substance by one degree Celsius.

The mixture of antifreeze and water lowers the freezing point and raises the boiling point of the solution in the radiator. This allows the coolant to remain in liquid form over a wider range of temperatures, enabling it to effectively absorb heat from the engine and transfer it to the radiator for cooling.

Refrigerators solved the problem of food spoilage by providing a way to keep perishable goods cool and extend their shelf life. This innovation allowed people to store food for longer periods of time, reducing waste and enabling a wider variety of foods to be available year-round.

Yes, you can refrigerate an open can of food. Transfer the remaining contents to a food-safe container with a tight-fitting lid before refrigerating it to maintain freshness and prevent contamination. Make sure to use the contents within a few days.

Refrigerator was just like a air conditioner and a magnet of Tom Swayer.

Nails, being solid metal, do not evaporate. Evaporation is a process that typically involves liquid turning into gas due to heat.

Water evaporates into the air, along with other volatile substances such as alcohol, gasoline, and perfumes. Evaporation is the process by which a liquid turns into a gas due to heat energy breaking the bonds between the liquid molecules.

When a car is turned off after running, the engine continues to radiate heat due to residual heat energy. This heat can transfer to the surrounding components, including the cooling system, causing the water temperature to rise momentarily before it begins to cool down. This is a normal process and should not be a cause for concern as long as the temperature does not exceed the operating limits.

Magma cools and solidifies either underground within the Earth's crust, forming intrusive igneous rocks like granite, or when it erupts onto the Earth's surface as lava and cools quickly, forming extrusive igneous rocks like basalt.

When warm air inside the car comes into contact with the cold window surface, it cools down and loses its ability to hold moisture, causing the water vapor to condense and form small water droplets on the glass, creating fog. This process is similar to how dew forms on grass in the morning.

Cold is to hot as still is to moving.

Yes, there is hot air and cold air. Hot air is air that has been heated and has a higher temperature, while cold air is air that has a lower temperature. Temperature differences in the air can affect weather patterns and create variations in temperature in different regions.

It sounds like there may be an issue with the wiring or controls of your temperature switches. Check to see if the wiring is connected properly and if the controls are functioning correctly. If the issue persists, it may be best to consult a professional HVAC technician for further troubleshooting and repairs.

The degree of hot or cold is measured on a temperature scale, typically in Celsius or Fahrenheit. Hot temperatures are associated with higher numbers, while cold temperatures are associated with lower numbers.

The water in the reservoir of your car may boil out due to a few reasons such as a malfunctioning radiator cap, a leak in the cooling system, or overheating of the engine. It is important to check for any leaks, ensure proper functioning of the radiator cap, and maintain the cooling system to prevent this issue.

Possible reasons for freon not flowing into the low-pressure port during a recharge could be a blockage or restriction in the system, a malfunctioning metering device like the expansion valve, or an issue with the compressor not creating sufficient suction. It's important to diagnose the problem accurately to ensure a successful recharge.

Oil mixing with water in the cooling system of a vehicle can be caused by a leak in the head gasket. The head gasket may have failed, allowing oil from the engine to mix with the coolant. Water mixing with oil, on the other hand, is typically a sign of a failed head gasket or a cracked engine block.

If the window has FROST on it you will need warm air to melt the ice. If the inside of the window has vapor on it you need DRY air. When you turn the defroster on (in most vehicles) the air conditioning compressor starts to run as well, drying out the air. The temperature should also be as warm as is comfortable for the driver. When the dried air is blown across the window, the water vapor evaporates and you can see again.

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CORRECTION:

So in reality, the "pump" or compressor has no actual drying affect on the air, the compressor itself is a closed system pump, that forces gas into a compressed tube, and then upon release of the gas the tubing freezes. The a/c fan then blows outside air over the frozen tubing, which looks like a tiny little radiator, thus cooling the outside air.

During the winter, people typically do no use their a/c system (unless they live in the southwest US or someplace HOT), which basically would mean that for many months the A/C pump, tubing, condenser and other components would suffer from what's basically called "Lot Rot". Rust would build up from trapped moisture, the lubrication that keeps the pump nice and smooth would pool up and dry off the moving parts. And when the summer time hit and someone turned their A/C on it would sputter and spit and probably seize the pump. Therefore, an ingenious engineer figured out to wire the A/C system to the Defrost button, since they use very different air intakes. So you can send warm mixed air to the defrost vent, and at the same time keep the A/C system running and lubricated through the long winter months. So your A/C runs when you push defrost not to dehumidify your air, but to keep you A/C system from taking a crap in the winter.

The reason you would see an affect on fogged windows from using the A/C switch, is because it's bringing in outside cooler air, which is probably far less humid than the air you've been breathing that fogged up the window in the first place. Dry external air, whisks away the water vapor on the windows. The cooler air also has an impact on the air that was fogging the window, in that it cools the air bringing it farther away from it's condensation point and causing it to reabsorb the moisture it shed on the glass.

The defrost system, is of course by name designed to get rid of "frost", but it also uses outside air mixed with heated air to give you the same affect of removing fog. However, not only does it bring in external dry air, it also brings the temperature of the glass up, which changes the condensation capability of the air on the glass.

Take your mind back to last summer, when you had a nice cold beer on a hot day, the can sweats, water drips off the cold can because of condensation of moisture in the air on the cool can surface. Think of your cold windshield, it's probably just as cold as that beer, and the air you are exhaling and sitting in is warm and juicy, so the glass fogs up. You can either heat the glass, cool the air in the car, introduce dry air to the car, or pull over and get a beer. Basically, I would suggest that the defrost feature offers two of the 3 viable options, it heats the glass, and it brings in external warmed dry air directly onto the glass to whisk the moisture up and prevent further condensation. The A/C option only brings in cooled dry air. Which works faster? maybe A/C does or maybe not, I think it depends on how warm your engine is, since A/C can be cold in seconds, but heat takes many minutes to manifest. I think the better question is which works longer and is more comfortable, I think that's definitely the defrost.

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ADDITION to CORRECTION:

The above "Correction" piece is by far the best answer I've seen on the web that bests answers the question: how to defrost/defog your car window. For what it's worth, the Correction piece is spot on about the A/C being used in the winter months as a maintenance issue. However, there is a correction (or at least some additional piece of information) to make the above answer a bit more precise.

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A/C operation:

The A/C operation described above is a bit unclear. Refrigerant is compressed to around 100psi as a gas (today its r-134a) by the compressor. Then, this gas is sent to the condenser which cools the high pressure, high temperature gas into a lower temperature gas. This gas turns into a liquid by the time it leaves the condenser. This liquid (highly pressurized) is sent through tubing until just before the evaporator it is sent through a fixed orifice that quickly depressurizes the liquid and quickly turns back into a gas. That is, it evaporates. When this refrigerant evaporates, it absorbs heat; thus, we get a cold sensation. Since the boiling point of r-134a is around 35 deg f, the air around the evaporator will be about 35 deg f. As the gas evaporates in the evaporator, a blower motor blows air across the evaporator and sends this cold air (about 35 deg f) into the passenger compartment. Thus, cold air.

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A/C as a dehumidifier:

The A/C does dry the air, but only in warm temperatures (i.e. you will see the moisture dripping from underneath your car). This moisture comes from the evaporator drain (which is inside the passenger compartment). So inside air is actually being 'dried' in the warmer months. So, the above statement about the A/C not drying the air , however, is true only if it is cold out.

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A/C bringing in outside air:

The A/C system doesn't necessarily introduce outside air. The blower motor is inside the vehicle and blows inside air or outside air (depending on the recirculation door position) across the evaporator, then the heater core. Thus, if the A/C is on and the recirculation door is closed (closing off outside air) then no external air is introduced, and defogging doesn't occur. BUT, if your car lets you turn on defrost (which always brings in outside air) and ac, then of course, external air is introduced. So, although technical points, I add these facts. Thanks to whoever posted the above "Correction" piece as I learned a lot from it. Thanks, and I hope my little piece shed some light.

This issue could be caused by several factors, such as a faulty thermostat, a clogged air filter, or an issue with the compressor or condenser. It is best to have a professional technician inspect the system to properly diagnose and fix the problem.

It is possible that there is an issue with the blend door actuator or the heater control valve. These components control the temperature distribution between the front and rear heating systems. I recommend checking these components to see if they are functioning properly.

The water boiling over in your car may be due to a malfunctioning cooling system or overheating engine. The gauge not marking hot could be a faulty temperature sensor or gauge. It's best to have a mechanic inspect your car to diagnose and fix the issue.

It is not accurate or fair to generalize an entire racial group as being cool or not cool. People's personalities and traits vary regardless of their race. It's important to treat individuals as individuals and not make assumptions based on their ethnicity.

William Henry Brown (1839-1928) was an African-American artist known for his portraits, landscapes, and genre paintings. He was born in Scotland and later moved to the United States where he became a prominent figure in the art world. Brown gained recognition for his realistic and emotive depictions of everyday life, and his works are held in various museum collections.

Alice H. Parker was an African-American inventor known for her patented design of a natural gas heating furnace in 1919, which paved the way for central heating systems in homes and buildings. Little is known about her personal life, but her invention revolutionized the way people heat their homes and is still used today.

Alice H. Parker was an African-American inventor who patented a gas heating furnace in 1919. Her invention was among the early forerunners to modern central heating systems.