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0.16 g of methane was subjected to combustion at $27^{\circ} C$ in a bomb calorimeter. The temperature of the calorimeter system (including water) was found to rise by ${0.5}^{\circ} C$ .
Calculate the heat of combustion of methane at constant pressure. The thermal capacity of the calorimeter system is $17.7 k J K^{- 1}$ .
$[R = 8.314 J K^{- 1} m o l^{- 1}]$ .

-890
890
-750
None of these

A

-750

B

None of these

C

-890

D

890

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