Answer to Question #168773 in General Chemistry for Chaihcai

Question

Calculate 🔼E if 100 kJ of heat energy is absorbed by the system and 30 kJ of work is done on the sorroundings.

Answer 1

∆E=?

q= +100KJ(positive because heat is absorbed)

w= -30KJ (negative because work is done on tge surrounding)

From first law of Thermodynamics,

∆E= q + w

∆E= +100-30 = +70KJ