Thermodynamics

Thermodynamics

11th Grade

15 Qs

quiz-placeholder

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Thermodynamics

Thermodynamics

Assessment

Quiz

Physics

11th Grade

Medium

Created by

Sripriya Udupi

Used 1+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which law of thermodynamics is used to understand the concept of energy conservation?

Zeroth law

First law

Second law

None of these

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which thermodynamic process is there no flow of heat between the system and the surroundings.

Isobaric

Isothermic

Adiabatic

Isochoric

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the temperature of the source is increased, the efficiency of carnot heat engine

Increases

Decreases

Remains constant

First increases then becomes constant

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An ideal heat engine operates in Carnot's cycle between 227 degree C and 127 C. it absorbs 6 x 10 ^4 J at high temperature. The amount of heat converted into work is

4.8 x 10^4 J

3.5 x 10^4 J

1.6 x 10^4 J

1.2 x 10^4 J

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the source temperature of the Carnot engine in K required to get 70% efficiency? Given sink temperature is 27 degree C.

1000 K

90 K

270 K

727 K

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

110 Joule of heat is added to a gaseous system, whose internal energy is 40 J.

Then the amount of external work done is

150 J

70 J

110 J

40 J

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The efficiency of carnot heat engine

1+(Temperature of sink/Temperature of source)

1-(Temperature of sink/Temperature of source)

1+(Temperature of source/Temperature of sink)

1+(Temperature of source/Temperature of sink)

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