AP EAPCET 2024 - 22th May Morning Shift | Heat and Thermodynamics Question 3 | Physics

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 $\left.=\frac{3}{2} R\right]$

72 kJ

7.2 kJ

720 kJ

360 kJ

AP EAPCET 2024 - 22th May Morning Shift

MCQ (Single Correct Answer)

-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 1 English

$2 \rho V$

$p V$

$\frac{1}{2} p V$

Zero

AP EAPCET 2024 - 22th May Morning Shift

MCQ (Single Correct Answer)

-0

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

$\frac{3}{2}$

$\frac{5}{3}$

$\frac{5}{7}$

$\frac{7}{5}$

AP EAPCET 2024 - 21th May Evening Shift

MCQ (Single Correct Answer)

-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

$100^{\circ} \mathrm{C}$

$60^{\circ} \mathrm{C}$

$40^{\circ} \mathrm{C}$

$80^{\circ} \mathrm{C}$

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