Find the external workdone on the system in Kcal, when 12.5 k cal of heat is supplied to the system and the corresponding increasing in internal energy is 10500 J (J = 4200 J/kcal)

Find the external workdone on the system in Kcal, when 12.5 k cal of h

1.	Find the external workdone on the system in Kcal, when 12.5 k cal of heat is supplied to the system and the corresponding increasing in internal energy is 10500 J (J = 4200 J/kcal)
Answer» 15 K CAL 12.5 KCAL `-10.0` kcal 7.5 kcal ANSWER :C