The specific heat capacity of water is 4200J / kg 0C. This means that to heat water
| January 28, 2021 | education
The specific heat capacity of water is 4200J / kg 0C. This means that to heat water with a mass of 2 kg per 1 ° C, an amount of heat is required in …
To find the amount of heat of a certain substance, it is necessary to write down the formula for Q.
It looks like this:
Q = cm (t2 – t1) or Q = cmΔt.
Let’s substitute known physical quantities into the formula for the amount of heat:
Q = 4200 J / kg * oC * 2 kg * 1 oC = 8 400 J.
The resulting work can be converted to kilojoules.
8 400 J = 8.4 kJ.
Answer: 8 400 J or 8.4 kJ.
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