1
NEET 2013
+4
-1
A gas is taken through the cycle
A $$\to$$ B $$\to$$ C $$\to$$ A, as shown. what is the net work done by the gas?

A
Zero
B
$$-$$ 2000 J
C
2000 J
D
1000 J
2
NEET 2013
+4
-1
During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its temperature. The ratio of $${{{C_p}} \over {{C_p}}}$$ for the gas is
A
$${5 \over 3}$$
B
$${3 \over 2}$$
C
$${4 \over 3}$$
D
2
3
AIPMT 2012 Mains
+4
-1
An ideal gas goes from state A to state B via three different processes as indicated in the P-V diagram.

If Q1, Q2, Q3 indicate the heat absorbed by the gas along the three processes and $$\Delta$$U1, $$\Delta$$U2, $$\Delta$$U3 indicate the change in internal energy along the three processes respectively, then
A
Q1 > Q2 > Q3 and $$\Delta$$U1 = $$\Delta$$U2 = $$\Delta$$U3
B
Q3 > Q2 > Q1 and $$\Delta$$U1 = $$\Delta$$U2 = $$\Delta$$U3
C
Q1 = Q2 = Q3 and $$\Delta$$U1 > $$\Delta$$U2 > $$\Delta$$U3
D
Q3 = Q2 = Q1 and $$\Delta$$U1 > $$\Delta$$U2 > $$\Delta$$U3
4
AIPMT 2012 Prelims
+4
-1
One mole of an ideal gas goes from an initial state A to final state B via two processes : It first undergoes isothermal expansion from volume V to 3V and then its volume is reduced from 3V to V at constant pressure. The correct P-V diagram representing the two process is
A
B
C
D
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