The diffrence between heat of reaction at constant volume and constant pressure for the reaction C 2 H 2 g -5-2 O 2 g - 2 CO 2 g - H 2 O l - At 300 K in Kcal is - Given - R -2 cal - mol - K -A- -0-3 KcalB- -0-3 KcalC- None of theseD- -0-9 Kcal

The correct option is C None of these n_g = 3/2; H = U + n_gRT U H = n_gRT = ( 3/2 ) × 2 × 300 ⇒ 0.9 Kcal ...

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The diffrence...

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The diffrence between heat of reaction at constant volume and constant pressure for the reaction

$C_{2} H_{2} (g) + \frac{5}{2} O_{2} (g) \to 2 C O_{2} (g) + H_{2} O (l) . A t 300 K i n K c a l i s : [G i v e n : R = 2 c a l / m o l . K]$

−0.3 Kcal

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+0.3 Kcal

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−0.9 Kcal

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None of these

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The diffrence between heat of reaction at constant volume and constant pressure for the reaction

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