The addition of h2 to c=c double bonds is an important reaction used in the preparation of margarine from vegetable oils. if 40ml of h2 and 40 ml of ethylene (c2h4) are allowed to react at 1.3 atm, the product ethane(c2h6) has a volume of 40 ml .

calculate the amount of pv work done. c2h4(g)+h2(> c2h6(g)
tell the direction of the energy flow.
the energy flow is directed into the system.
the energy flow is directed from the system