Chemistry - Thermodynamics - I Question with Solution | TestHub
ChemistryThermodynamics - IHeat & Heat CapacityHard2 minQB
ChemistryHardsingle choice
What is the heat capacity of the ideal diatomic gas (rigid molecules, no vibration) undergoing the process shown in the figure? The straight line is tangent to the curve at the point (V = 2 L, P = 6 atm) and cuts the axes at P = 10 atm and V = 5 L.
Options:
Answer:
D
Solution:
The tangent line is P = 10 - 2V, so dP/dV = -2 atm/L at the point of tangency. For PVx = constant, dP/dV = -xP/V: 2 = x × 6/2, so x = 2/3. C = CV + R/(1-x) = 2.5R + 3R = 5.5R. Matches (d).
Stream:JEESubject:ChemistryTopic:Thermodynamics - ISubtopic:Heat & Heat Capacity
⏱ 2mℹ️ Source: QB
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