Q.

In the given (V - T) diagram, what is the relation between pressures P1 and P2?

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a

P2

b

Cannot be predicted

c

P2=P1

d

P2>P1

answer is A.

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Detailed Solution

According to ideal gas equationPV = nRTOr V=nRTPFor an isobaric process, P = constant and V∝TTherefore, V - T graph is a straight line passing through origin. Slope of this line is inversely proportional to P.In the given figure,Slope2>Slope1 ∴  P2
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In the given (V - T) diagram, what is the relation between pressures P1 and P2?