EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 3 - Heat and Thermodynamics>VITEEE 2017>Q 6

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IMPORTANT

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Graph of specific heat at constant volume for a monatomic gas is

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Important Questions on Heat and Thermodynamics

HARD

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 3 - Heat and Thermodynamics>VITEEE 2019 Shift 1>Q 1

Consider a pair of insulating blocks with thermal resistances $R_{1}$ , and $R_{2}$ as shown in the figure. The temperature $θ$ at the boundary between the two blocks is

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 3 - Heat and Thermodynamics>VITEEE 2019 Shift 1>Q 2

When a system is taken from state $i$ to state $f$ along the path $i a f$ , it is found that $Q = 50 cal$ and $W = 20 cal$ . Along the path $i b f$ , $Q' = 36 cal$ . $W$ along the path $i b f$ is,

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 3 - Heat and Thermodynamics>VITEEE 2018 Shift 1>Q 3

The temperature of equal masses of the three different liquids

A

,

B

and

C

are

12^{o} C, 19^{o} C

and

28^{o} C

, respectively. The temperature when

A

and

B

are mixed is

16^{o} C

and when

B

and

C

are mixed is

23^{o} C

. The temperature when

A

and

C

are mixed is

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 3 - Heat and Thermodynamics>VITEEE 2018 Shift 1>Q 4

A body cools from

{50.0}^{o} C

to

{49.9}^{o} C

in

5 s.

How long will it take to cool from

{40.0}^{o} C

to

{39.9}^{o} C

? Assume the temperature of surroundings to be

{30.0}^{o} C

and Newton's law of cooling to be valid

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 3 - Heat and Thermodynamics>VITEEE 2018 Shift 1>Q 5

The molar specific heats of an ideal gas at constant pressure and volume are denoted by

C_{P}

and

C_{V}

, respectively. If

γ = \frac{C_{P}}{C_{V}}

and

R

is the universal gas constant, the

C_{V}

is equal to

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 3 - Heat and Thermodynamics>VITEEE 2017>Q 6

Graph of specific heat at constant volume for a monatomic gas is