PLEASE HELP C3H8 + 5 O2 → 3 CO2 + 4H2O
Propane (C3H8) is combusted with oxygen gas as shown above. If an actual yield of 6.50 g
of water product is recovered by combusting 5.00 grams of CaHe, what is the percent yield of
water in the reaction?

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added