Question

.how much heat energy is necessary to raise the tempetature of 5kg of water from 20 c​

Answer 1

Answer:

Quantity of heat required to raise 5 kg of water from 20 0C to 1000C is given by the formula:Q=m×c×ΔT(Q is usually used to symbolize that heat required in a case like this.) For water, the value of . C is 4.186Jg°C.So,Q=750×4.186×85=266858J=266.858kJDT = temperature difference =100-20=80 0C.

Explanation:

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Answer 2

Answer:

ans is 266.858kj1

calories: 4.18 joules

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