The First Law of Thermodynamics (Concept of Work, Heat Internal Energy and Enthalpy, Heat Capacity,...) NEET Questions

Physical Chemistry - Chemical Thermodynamics

The First Law of Thermodynamics (Concept of Work, Heat Internal Energy and Enthalpy, Heat Capacity,...) MCQ Questions


1.
Which of the following is a state function?
A.
Work
B.
Heat
C.
Internal energy
D.
Path function
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ANSWER :
C. Internal energy
2.
Which of the following is an extensive property?
A.
Pressure
B.
Temperature
C.
Enthalpy
D.
Boiling point
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ANSWER :
C. Enthalpy
3.
Which process occurs at constant volume?
A.
Isothermal
B.
Isobaric
C.
Isochoric
D.
Adiabatic
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ANSWER :
C. Isochoric
4.

Which of the following has the highest molar heat capacity?

A.

He

B.

H2

C.

H2O

D.

CO2

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ANSWER :

C. H2O

5.
Heat supplied at constant volume is equal to
A.
ΔH
B.
ΔU
C.
ΔS
D.
ΔG
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ANSWER :
B. ΔU
6.
Which of the following is an example of an exothermic reaction?

NEET - 2019

A.
Photosynthesis
B.
Melting of ice
C.
Combustion of methane
D.
Vaporization of water
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ANSWER :
C. Combustion of methane