1.

Find the enthalpy of combustion of carbon ( graphite) to produce carbon monoxide( g)on the basis of data given below`:` C ( graphite ) `+ O_(2)(g) rarr CO_(2)(g) + 393. 4 kJ mol^(-1)` `CO(g) + (1)/(2) O_(2)(g) rarr CO_(2)(g) + 283.0 kJ mol^(-1)`

Answer» Correct Answer - `Delta H = -110 .4 kJ mol^(-1)`
Aim `:C(s) + (1)/(2) O_(2)(g) rarr CO(g), DeltaH = ?`
Eqn . (i) - Eqn. (ii) gives the required result.


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