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(a)
Interpretation:
The variation of internal energy of a non-metallic solid at very low temperature
Concept introduction:
Internal energy:
Internal energy of a system is the total energy contained in the system. It keeps an account for the loss and gain of energy of the system due to changes in internal state. It is dependent on temperature and pressure.
It is denoted as
1st law of
The 1st law of thermodynamics states that the total energy of the isolated system is constant and that can be transformed into one form to another like heat to work or vice versa but can neither be created nor be destroyed.
It is represented as,
Where,
W is the energy transferred as the form of work to the system.
Q is the energy transferred as the form of heat to the system
Heat capacity at constant volume:
Specific heat capacity at constant volume is defined as the amount of heat required to increase the temperature by
It is denoted as
(b)
Interpretation:
The expression of molar specific heat at constant volume has to be interpreted at temperature
Concept introduction:
Internal energy:
Internal energy of a system is the total energy contained in the system. It keeps an account for the loss and gain of energy of the system due to changes in internal state. It is dependent on temperature and pressure.
It is denoted as
Internal energy per mole is called molar internal energy that is denoted by
1st law of thermodynamics:
The 1st law of thermodynamics states that the total energy of the isolated system is constant and that can be transformed into one form to another like heat to work or vice versa but can neither be created nor be destroyed.
It is represented as,
Where,
W is the energy transferred as the form of work to the system.
Q is the energy transferred as the form of heat to the system
Heat capacity at constant volume:
Specific heat capacity at constant volume is defined as the amount of heat required to increase the temperature by
It is denoted as
Specific heat capacity at constant volume per mole is considered as molar specific heat capacity at constant volume which is denoted as
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Chapter 2 Solutions
Elements Of Physical Chemistry
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