Standard molar heat of formation of ethane, `CO_(2)` and water are `-21.1 , -94.1 and -68.3` kcal respectively. Calculate the molar heat of combustion of ethane.

The standard molar heat of formation of ethane, carbon dioxide and liquid water are -21.1, -94.1 and -68.3 kcal respectively. Calculate the standard molar heat of combustion of ethane.

The standard molar heat of formation of ethane, carbon dioxide and water (liquid) are -21.1, -94.1 and -68.3 kcal respectively. Calculate the standard heat of the following reaction : 2C_2H_6 (g) + 7O_2(g) to 4CO_2(g) + 6H_2O(l)

The standard molar heats of formation of ethane, carbon dioxide, and liquid water ate -21.1, -94.1 , and -68.3kcal , respectively. Calculate the standard molar heat of combustion of ethane.

The standard molar heats of formation of ethane, carbon dioxide, and liquid water are -21.1, -94.1 , and -68.3kcal , respectively. Calculate the standard molar heat of combustion of ethane.