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Greeley [361]
3 years ago
5

Calculate the heat energy required to raise the temperature of 5 kg of water from 20℃ to

Computers and Technology
1 answer:
valina [46]3 years ago
6 0

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 :

Q=mc\Delta T\\\\=5\times 4200\times (40-20)\\\\=420000\ J\\\\=420\ kJ

So, the heat energy required is 420 kJ.

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