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A gas undergoes expansion in such a mann...

A gas undergoes expansion in such a mannerthat its p-V diagram plot is a downward sloping straight line as shown in the figure below. What happens to the temperature during the process ?

A

It increases first then decreases

B

It decreases first then increases

C

It continuously decreases

D

Data insuffcient

Text Solution

Verified by Experts

Plot the process a to b in the background of various dotted isothermal lines.

Not here `T_3 gt T_2 gt T_1`. If you start from a towards b. you are at `T_1 " then " T_1 " then " T_3` and then to `T_2` an back to `T_1`. So, the temperature first increases then it decreases. Hence, the correct response is (1).
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