1.

How much heat energy is necessary to raise the temperature of 5 kg of waterfrom 20 °C to 100 °C.​

Answer»

Answer:

EXPLANATION:

The boiling POINT of water is 100∘C . Heat is a form of energy that is transferred from systems having high temperature to LOW temperature. Hence, we REQUIRE 1680 kJ of energy to heat 5 kg of water from 20∘C to 100∘C



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