How many joules of heat are required to melt 40kg of ice at o degrees celcius?
Please note the correct spelling of Celsius. J = mass ice x heat of fusion of ice. Look up heat of fusion in your text or notes.
To calculate the amount of heat required to melt a substance, you need to use the equation:
Q = m * ΔHf
where:
Q is the amount of heat energy (in joules),
m is the mass of the substance (in kilograms),
ΔHf is the heat of fusion (latent heat) of the substance (in joules per kilogram).
For ice, the heat of fusion is 334,000 J/kg.
Now, let's substitute the given values into the equation:
m = 40 kg
ΔHf = 334,000 J/kg
Q = 40 kg * 334,000 J/kg
Q = 13,360,000 J
Therefore, the amount of heat required to melt 40 kg of ice at 0 degrees Celsius is 13,360,000 joules.