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: Understanding the Concept
Isochoric means constant volume, so \(\Delta V=0\) and the work \(W=P\Delta V=0\).

Step 2: First law
\(Q=\Delta U+W\) becomes \(Q=\Delta U\).

Step 3: The false statement
Heat added at constant volume raises the temperature, so \(\Delta T\) is generally not zero. \(\Delta T=0\) describes an isothermal process.

Final Answer:
The statement that Delta T equals zero is not true. \[ \boxed{\text{(A) }\Delta T=0} \]