Heat of combustion of C_(2)H_(4) is -337 kCal. If 5.6 lit O_(2) is used at STP, in the combustion heat liberated is _____ kCal

Heat of combustion of C_(2)H_(4) is -337 kCal. If 5.6 lit O_(2) is use

1.	Heat of combustion of C_(2)H_(4) is -337 kCal. If 5.6 lit O_(2) is used at STP, in the combustion heat liberated is _____ kCal
Answer» 28.08 14.04 42.06 56.16 ANSWER :A