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PLEASE HELP ME WITH THIS ONE QUESTION How many joules are needed to vaporize 125 g of liquid water at 100°C? The latent heat of vaporization is 2258 J/g.
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40 votes
40 votes
PLEASE HELP ME WITH THIS ONE QUESTION

How many joules are needed to vaporize 125 g of liquid water at 100°C? The latent heat of vaporization is 2258 J/g.

User Dmr
by
3.1k points

1 Answer

10 votes
10 votes

Answer:

282,250 joules

Step-by-step explanation:

Given that :

Mass of liquid water = 125 gram.

Latent heat of vaporization, L = 2258 J/g

Recall :

Q = mL

Where, Q = quantity of heat required in Joules

Mass) m

L = latent heat of vaporization

Q = mL

Q = 125 g * 2258j/g

Q = 282,250 joules

User Zhengkenghong
by
2.8k points
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