Answer to Question #168773 in General Chemistry for Chaihcai

Question #168773

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


1
Expert's answer
2021-03-08T06:06:25-0500

∆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


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