Thermodynamics MCQs
Practice free Thermodynamics multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 76 questions — no login required.
Question 64easy
In the equation PVn = constant, if the value of $${\text{n}} = \gamma = \frac{{{{\text{C}}_{\text{P}}}}}{{{{\text{C}}_{\text{V}}}}},$$ then it represents a reversible __________ process.
Question 65easy
In the equation, PVn = constant, if the value of n is in between 1 and y $$\left( {{\text{i}}{\text{.e}}{\text{., }}\frac{{{{\text{C}}_{\text{P}}}}}{{{{\text{C}}_{\text{V}}}}}} \right),$$ then it represents a reversible __________ process.
Question 66easy
In the equation, PVn = constant, if the value of $${\text{n}} = \pm \infty ,$$ then it represents a reversible __________ process.
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Question 67easy
Which of the following behaves most closely like an ideal gas?
Question 68easy
The internal energy of a gas obeying P (V - b) RT (where, b is a positive constant and has a constant Cv), depends upon its
Question 69easy
The expression for entropy change, ΔS = nCp.ln$$\left( {\frac{{{{\text{T}}_2}}}{{{{\text{T}}_1}}}} \right),$$ is valid for the __________ of a substance.
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Question 70easy
Cp of a gas at its critical temperature and pressure
Question 71easy
The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is
Question 72easy
Pick out the wrong statement.