1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
The internal energy change in a system that has absorbed 2 kcal of heat and done 500 J of work is
A
6400 J
B
5400 J
C
7900 J
D
8900 J
2
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
At 10oC the value of the density of a fixed mass of an ideal gas divided by it pressure is x. At 110oC this ratio is
A
$${{10} \over {110}}x$$
B
$${{283} \over {383}}x$$
C
$$x$$
D
$${{383} \over {283}}x$$
3
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
If Q, E and W denote respectively the heat added, change in internal energy and the work done in a closed cyclic process, then
A
E = 0
B
Q = 0
C
W = 0
D
Q = W = 0
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
An engine has an efficiency of 1/6. When the temperature of sink is reduced by 62oC, its efficiency is doubled. Temperatures of the source is
A
37oC
B
62oC
C
99oC
D
124oC.
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