First and Second Laws of Thermodynamics NEET Questions

Physics - Thermodynamics

First and Second Laws of Thermodynamics MCQ Questions


13.
In an adiabatic process, the quantity which remains constant is:

NEET - 2017

A.
Pressure
B.
Volume
C.
Temperature
D.
Heat content
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ANSWER :
D. Heat content
14.
Which of the following is a valid statement of the Second Law of Thermodynamics?
A.
Heat can be completely converted into work
B.
It is impossible to transfer heat from a colder to a hotter body without work
C.
Work can be completely converted into heat
D.
An engine with zero efficiency
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ANSWER :
B. It is impossible to transfer heat from a colder to a hotter body without work
15.
The First Law of Thermodynamics is related to:
A.
Energy transfer
B.
Mass conservation
C.
Volume conservation
D.
Temperature control
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ANSWER :
B. Mass conservation
16.
Which principle does the Second Law of Thermodynamics emphasize?
A.
Entropy decrease in an isolated system
B.
Entropy always increases
C.
Heat can spontaneously flow from cold to hot
D.
Heat cannot spontaneously flow from hot to cold
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ANSWER :
B. Entropy always increases
17.
In a cyclic process, the work done by the system is equal to:

NEET - 2022

A.
The increase in internal energy
B.
The heat added to the system
C.
The heat rejected by the system
D.
The net heat absorbed by the system
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ANSWER :
D. The net heat absorbed by the system
18.
The formula ΔQ = ΔU + ΔW is associated with:
A.
The First Law of Thermodynamics
B.
The Second Law of Thermodynamics
C.
The Zeroth Law of Thermodynamics
D.
The Third Law of Thermodynamics
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ANSWER :
A. The First Law of Thermodynamics