Calculate the ΔH for the following reaction: Cu + ½ O2 CuO
Given the following information:
CuO + Cu Cu2O ΔH = -11 kJ
2 CuO Cu2O + ½ O2 ΔH = +115 kJ

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The answer to your q the total mass is 73

The internal energy of the system we can term it as total potential energy and kinetic energy. energy flows out of the surrounding from the system then we can say that the internal energy of the final state is lower than its initials. the sign of  δesystem is negative.δesystem = efinal - einitial=-ve  efinal  ∠einitial.

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