A gas takes part in two processes in which it is heated from the same initial state 1 to the same final temperature. The processes are the straight lines 1-2 and 1-3 on the P-V diagram (Figure 2.34);

Question

A gas takes part in two processes in which it is heated from the same initial state 1 to the same final temperature. The processes are the straight lines 1-2 and 1-3 on the P-V diagram (Figure 2.34); 2 and 3 lie on the same isothermal curve. $Q_{1}$ and $Q_{2}$ are the heat transfers along 1-2 and 1-3 respectively. Then:

Options:

Answer:

B

Solution:

The change in internal energy is the same (same $Δ T$ ).

The work done along 1-3 is greater than along 1-2, so $Q_{2} > Q_{1}$ .

B.

TestHub · Accepted Answer

The change in internal energy is the same (same Δ T ). The work done along 1-3 is greater than along 1-2, so Q 2 ​ > Q 1 ​ . B.

Physics - Heat & Thermo Question with Solution | TestHub

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