How Does Pressure Affect Heat Capacity in Identical Systems?

The higher pressure system will have a higher heat capacity because it has more energy being put into the system which results in a higher heat capacity.In summary, in a constant pressure system, the heat capacity will be higher in a system with a higher pressure due to the addition of more energy into the system.
  • #1
dripdrop
1
0
I understand that the heat capacity of something run at constant volume is lower than at constant pressure, as at constant pressure the substance can expand, so some of the energy put into the system is used for work.

If i have two identical systems and heat them under constant pressure conditions, one system at higher pressure than the other. which will have the higher heat capacity and why?

cheers.
 
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  • #2
dripdrop said:
If i have two identical systems and heat them under constant pressure conditions, one system at higher pressure than the other. which will have the higher heat capacity and why?

cheers.

This condition is impossible thermodynamically. To do this, you need to add more molecules or increase temperature, or decrease volume.
 

Related to How Does Pressure Affect Heat Capacity in Identical Systems?

What is heat capacity?

Heat capacity is the amount of heat energy required to raise the temperature of a substance by one degree Celsius.

How is heat capacity related to pressure?

Heat capacity is directly proportional to pressure. As pressure increases, so does the heat capacity, meaning more heat energy is needed to raise the temperature of a substance by one degree Celsius.

What factors affect heat capacity?

The two main factors that affect heat capacity are the substance's mass and its chemical composition. Substances with higher mass and more complex chemical structures tend to have higher heat capacities.

What is specific heat capacity?

Specific heat capacity is the amount of heat energy required to raise the temperature of one gram of a substance by one degree Celsius. It is a more specific measurement of heat capacity and is often used in thermodynamic calculations.

How is heat capacity measured?

Heat capacity is typically measured using calorimetry, which involves measuring the change in temperature of a substance when a known amount of heat energy is added or removed. It can also be calculated using the substance's mass, specific heat capacity, and change in temperature.

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