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Solution for Write Mathematical Equation of First Law of Thermodynamics for Isochoric Process - HSC Science (Electronics) 12th Board Exam - Chemistry

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Question

Write mathematical equation of first law of thermodynamics for Isochoric process

Solution

By substituting equation `W= -p_(ex).triangleV` in the equation `triangleU=q+W`, we get

`triangleU=q-p_(ex).triangleV .........(1)`

If the reaction is carried out in a closed container so that the volume of the system is constant, then`triangleV=0.`In such a case, no work is involved.

The equation (1) becomes `triangleU=q_v.`

Equation (1) suggests that the change in internal energy of the system is due to heat transfer. The subscript v indicates a constant volume process. As U is a state function, qv is also a state function. We see that an increase in the internal energy of a system is numerically equal to the heat absorbed by the system in a constant volume (isochoric) process.

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Solution for question: Write Mathematical Equation of First Law of Thermodynamics for Isochoric Process concept: Chemical Thermodynamics and Energetic - First Law of Thermodynamics. For the courses HSC Science (Electronics), HSC Science (Computer Science), HSC Science (General)
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