1.

What is the final enthalpy of the solution made by mixing 5 grams of solution A having enthalpy 20 J with 15 grams of solution B having enthalpy 40 J?(a) 10 J(b) 20 J(c) 25 J(d) 35 J

Answer» The correct answer is (d) 35 J

Explanation: Final enthalpy = 0.25*20 + 0.75*40 = 5 + 30 = 35 J.


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