Question
Asked Feb 2, 2019
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Calculate the kilocalories needed to heat 4.5 kg of water from 22 Celsius to 23 Celsius

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Expert Answer

Step 1

Energy is required to raise the temperature of water from 22 degree C to 23 degree C.

 

Step 2

Given,

mass of water = 4.5 kg = 4500 g

[1 kg = 1000 g]

specific heat of water = 1 cal/g. degree C

change in temperature = 23 - 22 = 1 degree C

Using,

heat required = mass x specific heat x change in temperature

                              ...

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