1
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

The average energy associated with a monoatomic molecule is

A
$${K_B}T$$
B
$${1 \over 2}{K_B}T$$
C
$${3 \over 2}{K_B}T$$
D
$$2{K_B}T$$
2
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

Carnot cycle of an engine is given below

COMEDK 2021 Physics - Heat and Thermodynamics Question 35 English

Total work done by the gas in one cycle is

A
$$\mu R{T_2}\log {{{V_2}} \over {{V_1}}} - \mu R{T_1}\log {{{V_3}} \over {{V_4}}}$$
B
$$\mu R{T_1}\log {{{V_2}} \over {{V_1}}} - \mu R{T_2}\log {{{V_3}} \over {{V_4}}}$$
C
$$\mu R{T_1}\log {{{V_2}} \over {{V_1}}} + \mu R{T_2}\log {{{V_3}} \over {{V_4}}}$$
D
Zero
3
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

A compound slab is made of two parallel plates of copper and brass of the same thickness and having thermal conductivities in the ratio 4 : 1. The free face of copper is at 0$$^\circ$$C. The temperature of the interface is 20$$^\circ$$C. What is the temperature of the free face of brass?

A
0$$^\circ$$C
B
20$$^\circ$$C
C
40$$^\circ$$C
D
100$$^\circ$$C
4
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

In mm$$^3$$ of a gas is compressed at 1 atmospheric pressure and temperature 27$$^\circ$$C to 627$$^\circ$$C. What is the final pressure under adiabatic condition?

($$\gamma$$ for the gas = 1.5)

A
$$27\times10^5$$ N/m$$^2$$
B
$$80\times10^5$$ N/m$$^2$$
C
$$36\times10^5$$ N/m$$^2$$
D
$$56\times10^5$$ N/m$$^2$$
COMEDK Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12