1
AP EAPCET 2024 - 22th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Initially the pressure of 1 mole of an ideal gas is $10^5 \mathrm{Nm}^{-2}$ and its volume is 16 L . When it is adiabatically compressed, its final volume is 2 L . Work-done on the gas is

$\left[\right.$ molar specific heat at constant volume $\left.=\frac{3}{2} R\right]$

A
72 kJ
B
7.2 kJ
C
720 kJ
D
360 kJ
2
AP EAPCET 2024 - 22th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

An ideal gas is taken around $A B C A$ as shown in the $P^{\prime \prime}$ diagram. The work done during the cycle is

AP EAPCET 2024 - 22th May Morning Shift Physics - Heat and Thermodynamics Question 10 English
A
$2 \rho V$
B
$p V$
C
$\frac{1}{2} p V$
D
Zero
3
AP EAPCET 2024 - 22th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The ratio of kinetic energy of a diatomic gas molecule at a high temperature to that of NTP is

A
$\frac{3}{2}$
B
$\frac{5}{3}$
C
$\frac{5}{7}$
D
$\frac{7}{5}$
4
AP EAPCET 2024 - 21th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
A metal block is made from mixture of 2.4 kg of aluminium, 1.6 kg of brass and 0.8 kg of copper. The metal block is initially at $20^{\circ} \mathrm{C}$. If the heat supplied to the metal block is 44.4 cal . Find the final temperature of the block if specific heats of aluminium, brass and copper are $0.216,0.0917$ and $0.0931 \mathrm{cal} \mathrm{kg}^{-10} \mathrm{C}^{-1}$ respectively
A
$100^{\circ} \mathrm{C}$
B
$60^{\circ} \mathrm{C}$
C
$40^{\circ} \mathrm{C}$
D
$80^{\circ} \mathrm{C}$
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