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vaieri [72.5K]
2 years ago
13

I don’t understand this question someone please help

Chemistry
1 answer:
egoroff_w [7]2 years ago
3 0
The answer is 49.97.
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3 years ago
PLEASE HELP WITH THESE TWO QUESTIONS
adelina 88 [10]

1. Q=112.8 kJ

2. Q=5.01 kJ

<h3>Further explanation</h3>

The heat required for phase change :

  • melting/freezing :

Q = mLf

Lf=latent heat of fusion

  • vaporization/condensation

Q = mLv

Lv=latent heat of vaporization

1.

m=50 g=0.05 kg

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\tt Q=0.05\times 2256=112.8~kJ

2.

m=15 g=0.015 kg

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3 0
2 years ago
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