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A heat transfer process results in 20 kcal of heat being absorbed by 1 liter of water what temp will water be if it started at 25degrees Celsius?
The question seems to be a nice tidy exercise all ready for someone to jump in and
go to work on it. Unfortunately, however, "kw" is not a unit of energy, so the question
is completely unbounded, and loaded with wiggle-room.
Let's see what we can do with it:
One widely-quoted value for the specific heat of water is " 4.187 kJ / kg K ", meaning
4,187 joules to change the temperature of 1 kg of water 1 Kelvin (or 1° C).
-- To make it easy on ourselves, we assume without proof or discussion that
the mass of our 1.45L of water is 1.45 kg.
-- So it takes (4,187 x 1.45) = 6,071 joules to accomplish each °C that we want to
raise its temperature.
That's about all we can do with the information given in the question, because
it doesn't give us any defined amount of energy.
If, instead of "94 kilowatts", we use "94 kilowatt-seconds", THEN we would have
94,000 joules. If the water were to absorb every single erg of that and settle into
thermal equilibrium, its temperature would rise by
94,000 / 6,071 = 15.48° C
and its final temperature would be 40.48° C.
What else can I help you with?
What influences the amount of heat absorbed or released by the air?
The amount of heat absorbed or released by air is influenced by factors such as temperature difference, volume of air, specific heat capacity, and the presence of moisture. Additionally, the properties of the surface with which the air is in contact can also affect the heat transfer process.
How does earth bounce back heat into the atmosphere?
Earth bounces back heat into the atmosphere through a process called "radiative transfer," where heat energy from the Earth's surface is absorbed by greenhouse gases in the atmosphere and then re-emitted in all directions. This process helps maintain the Earth's temperature and energy balance.
A substance can absorb heat energy by the process of?
There are three methods by which substances absorb heat. These are conduction, or heat transfer through contact, convection, or heat transfer through fluid motion, and radiation, or heat transfer through electromagnetic radiation.
What happens when radiation reaches earth's surface?
When radiation reaches Earth's surface, it can be absorbed, reflected, or scattered. The amount of radiation that is absorbed can contribute to heating of the surface and atmosphere. This process is fundamental for maintaining Earth's energy balance and climate.
What is minus 7 degrees Fahrenheit equal to in Celsius?
Ah, let's paint a happy little conversion here. To find the temperature in Celsius, we can use the formula: Celsius = (Fahrenheit - 32) x 5/9. So, for -7 degrees Fahrenheit, when we plug it into the formula, we get approximately -21.67 degrees Celsius. Just like painting, converting temperatures can be a calming and beautiful process.
How many calories are released during the process of condensation?
To transform 1 gram of ice at 0 degrees Celsius to 1 gram of water vapor at 100 degrees Celsius, 720 calories are added (absorbed). There are no calories released during the process.
In a air conditioner is thermal energy absorbed by coolant within pipes?
Yes, in an air conditioner, thermal energy is absorbed by the coolant (usually a refrigerant) within pipes in the evaporator coil. This process helps to cool the air inside the building and transfer the absorbed heat energy outside.
When energy is absorbed in process what type of reaction is it?
When energy is absorbed in a process, it is an endothermic reaction. This means that the process absorbs heat from its surroundings to proceed.
Is glucose absorbed in the small intestine during the process of digestion?
Yes, glucose is absorbed in the small intestine during the process of digestion.
How does heat absorbed by earth's surface transfer back into the atmosphere?
Heat absorbed by Earth's surface is transferred back into the atmosphere through a process called infrared radiation. The surface of the Earth re-emits the absorbed heat as long-wave radiation, which escapes into the atmosphere. This outgoing radiation warms the air molecules it comes into contact with, contributing to the overall heat balance of our planet.
In which process is fiber absorbed into the large intestine?
it is absorbed in the small intestine before it gets absorbed back into the large instestine.
What influences the amount of heat absorbed or released by the air?
The amount of heat absorbed or released by air is influenced by factors such as temperature difference, volume of air, specific heat capacity, and the presence of moisture. Additionally, the properties of the surface with which the air is in contact can also affect the heat transfer process.
What is the difference between specific heat and latent heat, and how do they affect the heat transfer process?
Specific heat refers to the amount of heat required to raise the temperature of a substance by one degree Celsius, while latent heat is the heat absorbed or released during a phase change without a change in temperature. Specific heat affects the temperature change of a substance, while latent heat affects the phase change process. Both specific heat and latent heat play a role in heat transfer processes by determining how much heat is needed to change the temperature or phase of a substance.
Unused neurotransmitters are absorbed in a process called?
reuptake.
What is the process by which water is absorbed by the soil called?
percolation
What is heat radiation and how does it contribute to the transfer of energy in various systems?
Heat radiation is a form of energy transfer that occurs through electromagnetic waves. It contributes to the transfer of energy in various systems by allowing heat to be emitted and absorbed by objects without the need for direct contact. This process helps distribute heat evenly and efficiently, allowing for the transfer of energy in systems such as the Earth's atmosphere, the sun, and everyday objects.
What is the temperature used in the haber process?
The temperature used for the haber process is indeed 450 degrees Celsius.
