How many joules of heat are necessary to melt 500 g of ice at its freezing point?

Answer 1

#"40 kcal"#

Heat required to melt #"1 g"# of ice at #"0°C"# is approximately #"80 cal"#. This is also called latent heat of fusion of ice.
For #"500 g"# of ice
#"Q" = 500 cancel"g" × 80 "cal"/cancel"g" = "40000 cal = 40 kcal"#
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Answer 2

The heat required to melt ice at its freezing point is called the latent heat of fusion. For water, this value is 334 joules per gram. Therefore, to melt 500 grams of ice, the total heat required would be:

334 J/g * 500 g = 167,000 joules

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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