1
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
Two vessels separately contain two ideal gases A and B at the same temperature, the pressure of A being twice that of B. Under such conditions, the density of A is found to be 1.5 times the density of B. The ratio of molecular weight of A and B is
2
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
The coefficient of performance of a refrigerator is 5. If the temperature inside freezer is $$-$$20oC, the temperature of the surroundings to which it rejects heat is
3
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
One mole of an ideal diatomic gas undergoes a transition from A to B along a path AB as shown in the figure.
The change in internal energy of the gas during the transition is
The change in internal energy of the gas during the transition is
4
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
A Carnot engine, having an efficiency of as heat engine, is used as a refrigerator. If the work done on the system is 10 J, the amount of energy absorbed from the reservoir at lower temperature is
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