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A Level Physics HELP! Specific Heat Capacity??!?
Can anyone give me a detailed answer to this question?
A tank contains 160 kg of water at 65 °C.
Calculate the mass of water at 20 °C that must be added in order that
the final temperature of the water in the tank is 45 °C.
Assume the heat loss to the tank in this situation is negligible.
I would be grateful if you could! Thanks!
1 Answer
- 7 years agoFavorite Answer
Heat lost for the hotter water should be equal to heat gained by the colder water as they achieve thermal equilibrium.
m1c∆t1=m2c∆t2
m1∆t1=m2∆t2
(160)(65-45)=m2(45-20)
m2=128kg
End.
