Thermodynamics and Chemical Energetics AFCAT Questions

AFCAT Chemistry

Thermodynamics and Chemical Energetics MCQ Questions


13.
A ______________ of molecules rather than microscopic systems containing a few molecules.
A.
Centimetres
B.
Infinity
C.
Small Number
D.
Large Number
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ANSWER :
D. Large Number
14.
The wall that separates the system from the surroundings is called
A.
Stadium
B.
Primary
C.
Boundary
D.
Secondary
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ANSWER :
C. Boundary
15.
Open system is _______________ and matter between system and surroundings.
A.
Exchange of Money
B.
Exchange of Energy
C.
Chemical Energy
D.
Electrical Energy
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ANSWER :
B. Exchange of Energy
16.
Closed system no exchange of matter but _______________between system and the surroundings.
A.
Exchange of Energy is Possible
B.
Exchange of Energy is Impossible
C.
Electrical Energy
D.
Exchange of Money
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ANSWER :
A. Exchange of Energy is Possible
17.
Isolated system presence of reactants in a ___________ or any other closed insulated vessel is an example of an isolated system.
A.
Acid
B.
Carbon Flask
C.
Mono Flask
D.
Thermos Flask
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ANSWER :
D. Thermos Flask
18.
The ___________________ system is described by its measurable or macroscopic (bulk) properties.
A.
Radiation
B.
Temperature
C.
State of a Thermodynamic
D.
Isolation
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ANSWER :
C. State of a Thermodynamic