For hydrogen gas, Cp – Cv = a and for oxygen gas, Cp –

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For hydrogen gas, C_p – C_v = a and for oxygen gas, C_p – C_v = b, so the relation between a and b is given by

1. a = 16 b
2. 16 b = a
3. a = 4 b
4. a = b

Correct Option: D

Both are diatomic gases and C_p – C_v = R for all gases.