Task id10424

Task id10424

Three chemically non-interacting non-freezing liquids with masses of 1 kg, 10 kg and 5 kg with specific heat capacities of 2, 4 and 2 kJ/(kg*K), respectively, are mixed in the calorimeter. The temperatures of the first and second liquids before mixing were 6°C and -40°C. The temperature of the mixture became -19°C. Find the temperature (in °C) of the third liquid before mixing.

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