The heat of combustion of solid benzoic acid at constant volume is -3 21.30 Kilo joules at 27 degree centigrade .The heat of combustion at constant pressure is-?

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Q. The heat of combustion of solid benzoic acid at constant volume is

- 321.30 k J

27^{o} C

. The heat of combustion at constant pressure is:

Q. The heat liberated on complete combustion of

7.8 g

benzene is

327 k J

. This heat was measured at constant volume and at

27^{o} C

. Calculate the heat of combustion of benzene at constant pressure.

Q. If the heat of combustion of carbon monoxide at constant volume and at

17^{o}

C is

- 283.3

kJ, then its enthalpy of combustion at constant pressure(

R = 8.314 J d e g r e e^{- 1} m o l^{-}

)

The heat liberated on complete combustion of $7.8 g$ benzene is $327 K J$ . This heat has been measured at constant volume and at $27^{0} C$ . What is the heat of combustion of benzene at constant pressure at $27^{0} C (R = 8.3 J m o l^{- 1} K^{- 1})$

C_{6} H_{6} (g) + \frac{15}{2} O_{2} \to 6 C O_{2} (g) + 3 H_{2} O (l)

The heat liberated on complete combustion of

7.8

g benzene is

327

KJ. This heat has been measured at constant volume and at

27^{o}

C. Calculate heat of combustion of benzene at constant pressure at

27^{o} C

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