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Thermal Dynamics If you leave the fridge in your kitchen open for 10 minutes after an hour is the room warmer or colder than it would have been had you not?
A fridge works by transferring heat from within itself and dumping it into the room around it. if you leave the door open then the heat gets back in again through the open door meaning you waste a lot of energy doing nothing.
when the door is shut the fridge will pump heat out into the room raising it's temperature slightly. you can feel this heat coming off of the back of the fridge. when you leave the fridge door open then the temperature difference will try to reach equilibrium causing the room to cool slightly again.
Horse Isle Answer: Slightly warmer
What else can I help you with?
What is thermal conductivity of cast iron?
Thermal conductivity refers to the measure of the ability of a material to allow the flow of heat from its warmer surface to its colder surface. The thermal conductivity of cast iron is 80 Wm-1K-1.
Can something in a room be colder that room temp?
Yes, an object in a room can be colder than the ambient room temperature. For instance, if a cold drink is placed in a room, it can have a temperature lower than the surrounding air. This occurs because temperature is a measure of thermal energy, and the drink can lose heat to the warmer air until it reaches thermal equilibrium.
Why do your feet feel colder when you get into a pool using second law of thermodynamics?
Your feet feel colder when you get into a pool because heat naturally flows from areas of higher temperature to lower temperature to reach thermal equilibrium. When your feet are exposed to the cooler water, heat is transferred away from your feet into the water, making them feel colder. This is a result of the second law of thermodynamics, which states that heat will always transfer from a warmer object to a cooler object until thermal equilibrium is reached.
What is thermal reactions?
An Exothermal reaction is a chemical reaction that produces heat making the solution warm or hot. It is the opposite of an Endothemic reaction which makes the solution colder.
When hotter atoms c they transfer their energy to colder atoms?
When hotter atoms come into contact with colder atoms, energy is transferred from the hotter atoms to the colder ones through collisions between the particles. This transfer of energy causes the colder atoms to gain kinetic energy and increase their temperature. Heat flows from hot to cold until thermal equilibrium is reached.
The transfer of thermal energy from a hotter to a colder substance is called?
Heat transfer
Is it possible to use colder things rather than hot things for thermal energy?
Yes. Heat sinks around computer processors are colder than the processors: they "remove" thermal energy from the processors and so stop them from overheating.
Why is thermal energy hard to store?
Heat has a tendency to flow from hotter objects to colder objects. This can be reduced with thermal insulation, but not entirely stopped.
Why is thermal energy so hard to store?
Heat has a tendency to move from hotter to colder substances. To store thermal energy, you need to keep an object hotter (or colder) than its surroundings; and there are no perfect insulators that stop the flow of heat altogether.
How can thermal energy can flow from colder objects to hotter objects?
Thermal energy can flow from colder objects to hotter objects through a process known as heat transfer. This can occur by conduction, convection, or radiation. In general, heat always flows from areas of higher temperature to areas of lower temperature to reach thermal equilibrium.
What is the boundary between the warmer surface water and colder ocean water called?
Thermal Layer
Why do some objects feel colder than other objects of the same temperature?
Objects feel colder or warmer depending on their thermal conductivity, which is the ability to transfer heat. Materials like metal or stone have higher thermal conductivity, so they can quickly remove heat from your skin, making them feel colder. Other materials like wood or insulation have lower thermal conductivity and do not draw heat away as quickly, so they feel warmer to the touch.
What is the boundary between the warmer surface water and colder deep ocean water called?
Thermal Layer
What is the thermal conductivity of Cast iron?
Thermal conductivity refers to the measure of the ability of a material to allow the flow of heat from its warmer surface to its colder surface. The thermal conductivity of cast iron is 80 Wm-1K-1.
What is thermal conductivity of cast iron?
Thermal conductivity refers to the measure of the ability of a material to allow the flow of heat from its warmer surface to its colder surface. The thermal conductivity of cast iron is 80 Wm-1K-1.
When have a hot and cold substance which direction does thermal energy flow?
Thermal energy flows from the hotter substance to the colder substance until thermal equilibrium is reached, where both substances reach the same temperature.
Why do you loose thermal energy if your body temperature is 37 degrees c and the temperature around you is 25 degrees c?
Because thermal energy travels from hotter objects to colder objects.
