Thermal Properties of Matter
Column I contains a list of processes involving expansion of an ideal gas. Math this with Column II describing the thermodynamic change during this process. Indicate your answer by darkening the appropriate bubbles of the matrix given in the ORS.
Column I  Column II  
(A) 
An insulated container has two chambers separated by a valve. Chamber I contains an ideal gas and the Chamber II has vacuum. The valve is opened

(p)  The temperature of the gas decreases 
(B) 
An ideal monoatomic gas expands to twice its original volume such that its pressure , where V is the volume of the gas

(q)  The temperature of the gas increases or remains constant. 
(C) 
An ideal monoatomic gas expands to twice its original volume such that its pressure , Where V is its volume

(r)  The gas loses heat 
(D) 
An ideal monoatomic gas expands such that its pressure P and volume V follows the behaviour shown in the graph

(s)  The gas gains heat 
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JEE 2008