The amount of energy (q) needed to freeze a given mass is calculated using:
n = number of moles
ΔHvaporization = heat of vaporization (in J/mol)
m = 422 g
ΔHvaporization = 40.65 kJ/mol
Since we are given the mass of liquid water, we need to determine the number of moles of water.
The molar mass of H2O is 18.016 g/mol.
How much heat is required to convert 422 g of liquid H2O at 23.5 °C into steam at 150 °C?
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Our data indicates that this problem or a close variation was asked in Chemistry - OpenStax 2015th Edition. You can also practice Chemistry - OpenStax 2015th Edition practice problems.