Figure 3.77 shows the P - V diagram for a fixed mass of an ideal gas undergoing the cyclic process A BC A . A B represents the isothermal process. Which of the P - T graphs (A) to (D) shown represents

Question

Figure 3.77 shows the P - V diagram for a fixed mass of an ideal gas undergoing the cyclic process A BC A . A B represents the isothermal process. Which of the P - T graphs (A) to (D) shown represents the cyclic process?

TestHub · Accepted Answer

A B is isothermal, so on a P - T graph it is vertical ( T fixed, P falls from 2 P to P ). BC is isobaric (horizontal, T falls). C A is isochoric, a straight line through the origin. Only graph (C) has this. C.

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