calculate the amount of heat needed to melt 35.0kg of ice at 0*c

Answer 1

To calculate the amount of heat needed to melt a solid substance, we use the formula:

Q = m * ΔHf

where:
Q is the heat energy required (in Joules),
m is the mass of the substance (in kilograms),
and ΔHf is the heat of fusion (specific latent heat) for the substance (in Joules per kilogram).

Given:
m = 35.0 kg (mass of ice)
ΔHf = 334,000 J/kg (heat of fusion for ice)

Now, substitute the given values into the formula:

Q = 35.0 kg * 334,000 J/kg
Q = 11,690,000 J

Therefore, the amount of heat needed to melt 35.0 kg of ice at 0°C is 11,690,000 Joules.