JEE Main 2023 (Online) 25th January Evening Shift | Heat and Thermodynamics Question 176 | Physics

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JEE Main 2023 (Online) 25th January Evening Shift

MCQ (Single Correct Answer)

-1

Match List I with List II

	List I		List II
A.	Isothermal Process	I.	Work done by the gas decreases internal energy
B.	Adiabatic Process	II.	No change in internal energy
C.	Isochoric Process	III.	The heat absorbed goes partly to increase internal energy and partly to do work
D.	Isobaric Process	IV.	No work is done on or by the gas

Choose the correct answer from the options given below :

A-I, B-II, C-IV, D-III

A-II, B-I, C-III, D-IV

A-II, B-I, C-IV, D-III

A-I, B-II, C-III, D-IV

JEE Main 2023 (Online) 25th January Evening Shift

MCQ (Single Correct Answer)

-1

The graph between two temperature scales P and Q is shown in the figure. Between upper fixed point and lower fixed point there are 150 equal divisions of scale P and 100 divisions on scale Q. The relationship for conversion between the two scales is given by :-

JEE Main 2023 (Online) 25th January Evening Shift Physics - Heat and Thermodynamics Question 165 English

$${{{t_P}} \over {100}} = {{{t_Q} - 180} \over {150}}$$

$${{{t_P}} \over {180}} - {{{t_Q} - 40} \over {100}}$$

$${{{t_Q}} \over {150}} = {{{t_P} - 180} \over {100}}$$

$${{{t_Q}} \over {100}} = {{{t_P} - 30} \over {150}}$$

JEE Main 2023 (Online) 25th January Evening Shift

MCQ (Single Correct Answer)

-1

According to law of equipartition of energy the molar specific heat of a diatomic gas at constant volume where the molecule has one additional vibrational mode is :-

$$\frac{9}{2}R$$

$$\frac{5}{2}R$$

$$\frac{3}{2}R$$

$$\frac{7}{2}R$$

JEE Main 2023 (Online) 25th January Morning Shift

MCQ (Single Correct Answer)

-1

The root mean square velocity of molecules of gas is

Proportional to temperature ($$T$$)

Inversely proportional to square root of temperature $$\left( {\sqrt {{1 \over T}} } \right)$$

Proportional to square of temperature ($$T^2$$)

Proportional to square root of temperature ($$\sqrt T$$)

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