1
AP EAPCET 2024 - 23th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
When 2 moles of a monoatomic gas expands adiabatically from a temperature of $80^{\circ} \mathrm{C}$ to $50^{\circ} \mathrm{C}$, the work done is $W$. The work done when 3 moles of a diatomic gas expands adiabatically from $50^{\circ} \mathrm{C}$ to $20^{\circ} \mathrm{C}$, is
A
7 W
B
5 W
C
2.5 W
D
3.5 W
2
AP EAPCET 2024 - 23th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
A gas absorbs 18 J of heat and work done on the gas is 12 J . Then, the change in internal energy of the gas
A
24 J
B
36 J
C
6 J
D
30 J
3
AP EAPCET 2024 - 23th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
If the ratio of the absolute temperature of the sink and source of a Carnot engine is changed from $2: 3$ to $3: 4$, the efficiency of the engine change by
A
$25 \%$
B
$40 \%$
C
$50 \%$
D
$15 \%$
4
AP EAPCET 2024 - 23th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The ratio of the molar specific heat capacities of monoatomic and diatomic gases at constant pressure is
A
$1: 7$
B
$5: 7$
C
$3: 7$
D
$2: 7$
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