A mixture of 2 moles of carbon monoxide and one mole of oxygen in a closed vessel is ignited to get carbon dioxide. If `Delta H` is the enthalpy change and `Delta E` is the change in internal energy, then :-

Options

A. `DeltaH gt DeltaE`
B. `DeltaH lt DeltaE`
C. `DeltaH = DeltaE`
D. The relationship depends on the capacity of the vessel

Answer

B

Explanation

Formation of `CO_(2)` from CO is an exotheric reaction, heat is evolved from the system, i.e., energy is lowered. Thus, exothermic reactions occur spontaneously on account of decrease in enthalpy of system. Thus, `DeltaE gt DeltaH`.