What quantity of heat must be removed from 20.0 g of liquid water at 0^°C to completely freeze the water? The heat of fusion of ice is 335 J/g.

Question

Quizplus · Accepted Answer

The amount of heat required to freeze the water is given by:
Q = m * ΔHf
where Q is the amount of heat, m is the mass of water, and ΔHf is the heat of fusion of ice.
Substituting the given values:
Q = 20.0 g * 335 J/g = 6700 J
Therefore, the quantity of heat that must be removed from the water to freeze it completely is 6700 J. The correct choice is C.

What Quantity of Heat Must Be Removed from 20