How many grams of water are frozen if 6,346 Joules of energy was given off at 0 degrees Celsius?
1 point
19 g
26 g
43 g
3g

19g

Explanation:

Given parameters;

Amount of energy  = 6346J

Unknown:

Mass of water frozen = ?

Solution:

This is a phase change and a latent heat was involve;

        H  = mL

H is the quantity of heat

m is the mass

L is the latent heat of fusion of water  = 335J/g

So;

        6346  = mass x  335

    Mass = 19g

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