Question: A 2-L liquid at 20oC is mixed with 3 L of another liquid at the same temperature and pressure in an adiabatic container, forming a

A 2-L liquid at 20oC is mixed with 3 L of another liquid at the same temperature and pressure in an adiabatic container, forming a homogeneous liquid solution. Someone claims that the temperature of the mixture rose to 22oC after mixing. Another person refutes the claim, saying that this would be a violation of the first law of thermodynamics. Who do you think is right?

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