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.

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.

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 enthalpy of formation of ethane, carbon dioxide and liquid water are -21.1, -91.1 and -68.3 kcal respectively. Calculate the standard enthalpy change of the following reaction : 2C_(2)H_(5)(g) + 7O_(2)(g) to 4CO_(2)(g) + 6H_(2)O(l) .

The standard molar heat for formation of ethane, carbondioxide and water are respectively, -21.1,-94.1 and -68.3 Kacal "mol"^(-1) . What is the standard molar heat of combustion of ethane ?