`DeltaH` for combustion of ethene and ethyne are -341.1 and -310.0 kcal, respectively. What will be the ratio of calorific values of ethane and ethyne, respectively?

DeltaH for combustion of ethane and ethyne are -341.1 and -310.0kcal respectively. Which gas is better for welding purpose and why ?

Heat of formation of CO and CO_2 are -26.4, -94.0 kcal/mole respectively. What is the heat of combustion of CO in kcals?

The heats of combustion of ethane, ethene and acetylene are -341.1 kcal, -330 kcal and -310.9 kCal mol^(-1) respectively. The best fuel among them is

2 moles of a mixture of acetylene and ethane produced on combustion, 5500 kJ of heat energy. The enthalpies of combustion of acetylene and ethane are 2000 and 3000 kJ mol^(-1) respectively. The ratio of acetylene to ethane in the mixture is