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1
JEE Main 2021 (Online) 18th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
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What will be the average value of energy along one degree of freedom for an ideal gas in thermal equilibrium at a temperature T? (kB is Boltzmann constant)
A
$${1 \over 2}{k_B}T$$
B
$${2 \over 3}{k_B}T$$
C
$${3 \over 2}{k_B}T$$
D
$${k_B}T$$
2
JEE Main 2021 (Online) 17th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
If one mole of the polyatomic gas is having two vibrational modes and $$\beta$$ is the ratio of molar specific heats for polyatomic gas $$\left( {\beta = {{{C_P}} \over {{C_V}}}} \right)$$ then the value of $$\beta$$ is :
A
1.02
B
1.35
C
1.2
D
1.25
3
JEE Main 2021 (Online) 17th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one is the correct option for the two different thermodynamic processes?

JEE Main 2021 (Online) 17th March Evening Shift Physics - Heat and Thermodynamics Question 199 English 1
JEE Main 2021 (Online) 17th March Evening Shift Physics - Heat and Thermodynamics Question 199 English 2
JEE Main 2021 (Online) 17th March Evening Shift Physics - Heat and Thermodynamics Question 199 English 3
JEE Main 2021 (Online) 17th March Evening Shift Physics - Heat and Thermodynamics Question 199 English 4
A
(a) only
B
(c) and (d)
C
(b) and (c)
D
(c) and (a)
4
JEE Main 2021 (Online) 17th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
A polyatomic ideal gas has 24 vibrational modes. What is the value of $$\gamma$$?
A
1.37
B
1.30
C
1.03
D
10.3
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