Heat added at constant volume of a gas is used to:
Correct answer: B. Internal energy of the gas increases
- A. To do external work
- B. Internal energy of the gas increases
- C. Both 'A' and 'B'
- D. None of these
Explanation
lsochoric process. When heat is added at constant volume (an isochoric process), it primarily increases the internal energy of the system without doing work. This process typically leads to an increase in the temperature of the substance or system without any change in its volume. The energy added in this process can be used for various purposes depending on the system, such as increasing the temperature, changing the internal energy for chemical reactions, or increasing the pressure within a closed system.
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About First Law of Thermodynamics
The first law relates heat supplied, work done and the change in internal energy through energy conservation. Problems use sign conventions and apply the law to isothermal, adiabatic, isobaric and isochoric processes. Internal energy is a state function, while heat and work depend on the path followed.
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