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For ideal gas, molar heat capacity C_v vs C_p relationship:
ARandom
BAlways C_v > C_p
CC_p/C_v = γ
DC_p > C_v and C_p = C_v + R
Answer & Solution
Correct answer: D. C_p > C_v and C_p = C_v + R
For all ideal gases: C_p = C_v + R, C_p > C_v, γ = C_p/C_v depends on DOF (monatomic 5/3, diatomic 7/5, etc.).
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