# The bath

The bath has water with a volume of 220 l and a temperature of 65°C. Find the mass m

_{2}of water at 15°C to be poured, so the resulting temperature in the bath will be 40°C. We neglect the heat exchange between water and the environment. The mass heat capacity of water is 4200 J/kg ∙ °C.### Correct answer:

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