## The heat of fusion for water is 80. cal/g. How many calories of heat are released when 20.0 g of water at 0°C is frozen to ice?

Question

The heat of fusion for water is 80. cal/g. How many calories of heat are released when 20.0 g of water at 0°C is frozen to ice?

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5 months 2021-09-02T07:00:16+00:00 1 Answers 7 views 0

1600 cal

Explanation:

The formula

q=mΔ$$H^{0}$$

is used to calculate the heat required to melt a solid where q=amount of heat, m=mass and Δ$$H^{0}$$ is the enthalphy of fusion

now we substitute, m=20g, Δ$$H^{0}$$=80cal/g

Therefore, q=20g x 80cal/g =1600 cal

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