Define principal and molar specific heat of a gas at constant volunie and constant pressure.

Monjur Alahi

Define principal and molar specific heat of a gas at constant volunie and constant pressure.


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Salim Ahmed Kawsar

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1. Principal specific heat:

  • Principal specific heat of a gas at constant volume (sV):

Principal specific heat of a gas at constant volume is defined as the quantity of heat absorbed or released for rise or fall temperature of unit mass of a gas through 1 K (or 1 °C), when its volume is kept constant.

  • Principal specific heat of a gas at constant pressure (sP): Principal specfic heat of a gas at constant pressure is defined as the quantity of heat absorbed or released for rise or fall the temperature of unit mass of a gas through 1 K (or 1 °C), when its pressure is kept constant.

2. Molar specific heat:

  • Molar specific heat of a gas at constant volume (CV): Molar specific heat of a gas at Constant volume is defined as the quantity of absorbed or released for rise or fall the temperature of one mole of the gas through 1 K (or 1 °C), when its volume is kept constant.
  • Molar specific heat of a gas at constant pressure (CP): Molar specific heat of a gas at constant pressure is defined as the quantity of heat absorbed or released for rise or fall the temperature of one mole of the gas through 1 K (or 1 °C), when its pressure is kept constant.
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this is the solution!!!! 

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