Answer to Question #311502 in General Chemistry for reg

Question

if the internal energy of reaction is 480J and the system absorbs 839J of heat from its surrounds,

a. Find the amount of work

b. Is the work done by system or work is done on the system? Explain

Answer 1

The surrounding heat increases, so the heat of the system decreases because heat is not created nor destroyed. Therefore, heat is taken away from the system making it exothermic and negative. The value of Internal Energy will be the negative value of the heat absorbed by the surroundings.