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Question: Answered & Verified by Expert
Consider a mixture of n moles of helium gas and 2n moles of oxygen gas (molecules taken to be rigid) as an ideal gas. Its CPCV value will be:
PhysicsKinetic Theory of GasesJEE MainJEE Main 2020 (08 Jan Shift 2)
Options:
  • A 1913
  • B 6745
  • C 4027
  • D 2315
Solution:
2611 Upvotes Verified Answer
The correct answer is: 1913
γmix =n1cp1+n2cp2n1cv1+n2cv2
=n52R+2n72Rn32R+2n52R
=5+143+10=1913

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