Question

How much energy will it take to raise 3 kg of water by 5°C? (water has a specific heat capacity of 4,200 J/kg°C)

Answer 1

Answer:

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Answer 2

Answer:

it will take 63,000 Joules of energy to raise 3 kg of water by 5°C.

Explanation:

To calculate the amount of energy required to raise 3 kg of water by 5°C, we need to use the formula:

Energy = mass x specific heat capacity x temperature change

Where the mass of water is 3 kg, the specific heat capacity is 4,200 J/kg°C and the temperature change is 5°C.

Substituting these values into the formula, we get:

Energy = 3 kg x 4,200 J/kg°C x 5°C

Energy = 63,000 Joules

Therefore, it will take 63,000 Joules of energy to raise 3 kg of water by 5°C.

It's worth noting that the specific heat capacity of water is relatively high compared to other substances, which means that it takes a lot of energy to raise the temperature of water. This property makes water an excellent coolant and is also why it takes longer for bodies of water to heat up or cool down compared to the surrounding air.

for more questions on specific heat capacity

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