Question

For an isochoric process, which of the following statements is NOT true?

• A. \(\Delta T=0\)
• B. \(\Delta V=0\)
• C. \(W=0\)
• D. \(Q=\Delta U\)

Hint:

An isochoric process has constant volume, so no work is done and heat only changes internal energy.

Answer 1

The Correct Option is A

Step 1: Check each option
$\Delta V=0$, $W=0$ and $Q=\Delta U$ are all true for an isochoric process.

Step 2: Remaining option
$\Delta T=0$ is the condition for an isothermal process, not isochoric, so it is the untrue statement.

Step 3: Final answer
The statement $\Delta T=0$ is the one that is not true for an isochoric process.

Final Answer:
Only Delta T equals zero is false for an isochoric process. \[ \boxed{\text{(A) }\Delta T=0} \]