Calculate the heat energy required to raise the temperature of 5 kg of water from 20℃ to 40℃. Specific heat capacity of water is 4200 J kg-1 k-1

Given that,

Mass of water, m = 5 kg

The temperature increases from 20℃ to  40℃.

Specific heat capacity of water is 4200 J kg⁻¹ k⁻¹

To find,

Heat energy required to raise the temperature.

Solution,

The formula for the heat energy required to raise the temperature is given by :

So, the heat energy required is 420 kJ.

it could be e. idk for sure

i guess the correct option is letter a.

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