1

JEE Main 2021 (Online) 20th July Morning Shift

Numerical

+4

-1

In the reported figure, heat energy absorbed by a system in going through a cyclic process is ___________ $$\pi$$J.

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2

JEE Main 2021 (Online) 16th March Evening Shift

Numerical

+4

-1

Out of Syllabus

For an ideal heat engine, the temperature of the source is 127$$^\circ$$C. In order to have 60% efficiency the temperature of the sink should be ___________$$^\circ$$C. (Round off to the Nearest Integer)

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3

JEE Main 2021 (Online) 26th February Evening Shift

Numerical

+4

-1

1 mole of rigid diatomic gas performs a work of $${Q \over 5}$$ when heat Q is supplied to it. The molar heat capacity of the gas during this transformation is $${xR \over 8}$$. The value of x is _________. [R = universal gas constant]

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4

JEE Main 2021 (Online) 26th February Evening Shift

Numerical

+4

-1

The volume V of a given mass of monoatomic gas changes with temperature T according to the relation $$V = K{T^{{2 \over 3}}}$$. The workdone when temperature changes by 90K will be xR. The value of x is _________. [R = universal gas constant]

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Questions Asked from Heat and Thermodynamics (Numerical)

Number in Brackets after Paper Indicates No. of Questions

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