AP EAMCET · Chemistry · Thermodynamics (C)

Identify the correct statements from the following.
(I) For adiabatic process, \(\Delta U=W_{\text {adiabatic }}\)
(II) Work is path function.
(III) Volume is an extensive property.

A I, II, III
B I, III only
C II, III only
D I, II only

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Answer & Solution

Correct Answer

(A) I, II, III

Step-by-step Solution

Detailed explanation

From first law, \(\Delta U=q+W\) For adiabatic process, \(q=0\) \[ \Delta U=W \] Work is path function. Consider the \(p V\) curve shown below. To reach from initial state 1 to final state 2 , the area under the curve when path \(A\) is taken is more than the area under the…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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Identify the correct statements from the following.(I) For adiabatic process, \(\Delta U=W_{\text {adiabatic }}\)(II) Work is path function.(III) Volume is an extensive property.

Step-by-step Solution

Identify the correct statements from the following.
(I) For adiabatic process, \(\Delta U=W_{\text {adiabatic }}\)
(II) Work is path function.
(III) Volume is an extensive property.