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In the given (V - T) diagram, what is the relation between pressure P1 and P2? [figure]
(1) P2 < P1
For an ideal gas at constant pressure: V = ( nRP )T
slope of the V–T line = = nRP, i.e. P 1
From the graph, 2 > 1 2 > 1
P2 < P1
Answer: (1)
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