A schematic representation of enthalpy changes for the reaction, C(graphite) + O2(g) → CO(g) is given below. The missing value is

Engineering

Chemistry

Hess Law

Question

A schematic representation of enthalpy changes for the reaction, C(graphite) + $\frac{1}{2}$ O₂(g) → CO(g) is given below. The missing value is

+ 10.5 kJ

- 11.05 kJ

- 110.5 kJ

- 10.5 kJ

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Since enthalpy is a state function therefore it does not depend on the path . Thats y the enthalpy of direct method and indirect method of formation of product ( i . e here CO2 ) will be same so thats y.....

-393.5 = X + (-283 KJ)

X = -110.5 KJ

Hence, the correct option is C.