EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 17 - Thermodynamics>TS EAMCET Medical 2021 (9-Aug Shift-1)>Q 4

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In an isothermal process if heat is supplied to an ideal gas, then

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Important Questions on Thermodynamics

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 17 - Thermodynamics>TS EAMCET - 9 August 2021 Shift 2>Q 5

A tyre pumped to a pressure of

2

atmosphere, suddenly bursts. If the temperature of air before expansion is

27 ° C

, then the final temperature of air is use

\frac{C p}{C v} = 1.5, 2^{1 / 3} = 1.2]

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 17 - Thermodynamics>TS EAMCET - 10 August 2021 Shift 1>Q 6

An insulated rectangular container carrying gas is filled with a movable piston. The dimension of the piston is

10 cm \times 20 cm \times 1 cm .

The density of the material of which the piston is made is

8 g {cm}^{- 3}

. If the gas expands, lifting the piston by,

10 cm,

what is the change in the internal energy of the gas?
[Take

g = 10 m s^{- 2}

]

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 17 - Thermodynamics>TS EAMCET - 10 August 2021 Shift 1>Q 7

In an adiabatic process the volume is decreased by

\frac{9}{16} % .

If

\frac{C_{p}}{C_{V}} = \frac{4}{3}

, then the pressure is increased by

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 17 - Thermodynamics>TS EAMCET - 9 August 2021 Shift 2>Q 8

What will be the efficiency of a Carnot engine if it takes heat from reservoir, at

100 ° C

and rejects heat to a sink at,

50 ° C

?

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 17 - Thermodynamics>TS EAMCET 2020 (28-Sep Shift-1)>Q 9

An air conditioner

(A C)

removes heat at a rate of

1.2 kJ \sec^{- 1}

from a room. A power of

400 W

is required to run the

A C

. The coefficient of performance

(α)

of the

A C

is

10 %

of that of the refrigerator operating between outside and room temperature. If outside temperature is

37 ° C

, what will be room temperature?

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 17 - Thermodynamics>TS EAMCET Medical 2018 (02 May Shift-1)>Q 10

Two carnot engines

A

and

B

are connected in series in such a way that the work outputs are equal when the temperatures of hot and cold reservoirs of

A

are

800 K

and

T

, and of engine

B

are

T

and

300 K

, respectively. Then the temperature

T

is