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Thermodynamics JEE Mains Questions. We covered all the Thermodynamics JEE Mains Questions in this post for free so that you can practice well for the exam.
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Thermodynamics JEE Mains Objective Questions for Students
During adiabatic expansion of a gas, cooling occurs because of
a) Loss of kinetic energy
b) Decrease in temperature
c) Rise in temperature
d) energy being consumed in performing work
Option b – Decrease in temperature
The Heat content of a thermodynamic system is referred to as
a) Internal energy
b) Entropy
c) Intrinsic energy
d) Enthalpy
Option d – Enthalpy
Two moles of an ideal gas expand isothermally and reversibly from 1 dm³ to 10 dm³ at 27 °C. What is the change in enthalpy?
a) 4.8 kJ
b) 11.4 kJ
c) −11.4 kJ
d) 0 kJ
Option d – 0 kJ
When two moles of an ideal gas expand freely into a vacuum, the work done is
a) 2 J
b) 4 J
c) 0 J
d) Infinite
Option c – 0 J
Which of the following is not a state function?
a) Internal energy
b) Entropy
c) Heat
d) Gibbs free energy
Option c – Heat
Heat absorbed by a system at constant volume is equal to the change in
a) Entropy
b) Enthalpy
c) Internal energy
d) Cp
Option c – Internal energy
Which of the following thermochemical quantities can be either positive or negative?
a) Heat of combustion
b) Heat of formation
c) Heat of neutralization
d) Heat of dissociation
Option b – Heat of formation
The introduction of a catalyst in a chemical reaction affects which parameter?
a) Internal energy
b) Enthalpy
c) Activation energy
d) Entropy
Option c – Activation energy
We covered all the Thermodynamics JEE mains Questions above in this post for free so that you can practice well for the exam.
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