1
AP EAPCET 2024 - 22th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The efficiency of a heat engine that works between the temperatures where Celsius-Fahrenheit scales coincides and Kelvin-Fahrenheit scales coincides is (approximately)
A
$45 \%$
B
$35 \%$
C
$60 \%$
D
$50 \%$
2
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
3
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 6 English
A
$2 \rho V$
B
$p V$
C
$\frac{1}{2} p V$
D
Zero
4
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
$\frac{7}{5}$
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