1g of graphite is burnt in a bomb calorimeter in excess of oxygen at 298 K and 1 atmospheric pressure according to the equation
C (graphite)`+O_(2)(g)rarrCO_(2)(g)`
During the reaction, temperature rises from 298 K to 299 K. If the heat capacity of the bomb calorimeter is 20.7kJ/K, what is the enthalpy change for the above reaction at 298 K and 1 atm?

Options

A. `-20.7 kJ//K`
B. `-2.48xx10^(2) kJ//mol`
C. `-20.7 J//K`
D. `-2.48 J//K`

Answer

B

Explanation

`DeltaU=ZxxthetaxxM/W`