Heat is supplied to a diatomic gas at constant pressure. Then the ratio of

Question

Heat is supplied to a diatomic gas at constant pressure. Then the ratio of $ΔQ : ΔU : ΔW$ is ______. [2026]

Smart Achievers · Accepted Answer

(4)

$Diatomic gas (p = constant)$

$Δ Q = Δ Q_{p} = n C_{p} Δ T = \frac{7}{2} n R Δ T$

$Δ U = n C_{v} Δ T = \frac{5}{2} n R Δ T$

$Δ W = n R Δ T$

$Δ Q : Δ U : Δ W : : 7 : 5 : 2$

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