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WorksheetsHeat of Fusion and heat of Vaporization
Total questions: 10
Worksheet time: 30mins
Name
Class
Date
1.
When water is heated from 10°C to 15°C What is the change in temperature?
a)
10 °C
b)
5 °C
c)
15 °C
d)
25 °C
2.
When a piece of aluminum foil is taken out of the oven and cools from 100°C to 50°C.
What is the change in temperature?
What is the change in temperature?
a)
50°C
b)
0°C
c)
100°C
d)
150°C
3.
When a baked potato at 10 °C is heated to 180 °C in the oven its temperature change is
a)
170 °C
b)
10 °C
c)
180 °C
d)
190 °C
4.
If I have 2 blocks of Aluminium (one of 1kg and one of 10 kg) and heat them up.
Which one heats up the fastest.
Which one heats up the fastest.
a)
1 kg
b)
10 kg
c)
They both heat up at the same speed
d)
They don't heat up.
5.
If I heat up 2 pans of water one has 100 mL in it and one has 1000mL. Which one heats up the fastest?
a)
100 mL
b)
1000 mL
c)
They both heat up at the same speed
d)
They cool down.
6.
How much energy is required to heat up 12kg of copper from 10 °C to 120 °C. The specific heat capacity is 390 J/kg °C.
a)
46800 J
b)
561600 J
c)
514800 J
7.
How many Joules of energy are required to make 100 grams of ice at 0 οC completely melt? The specific latent heat of fusion of ice is 334000 J/kg
a)
200 J
b)
400 J
c)
33,400 J
d)
2,000,000 J
8.
Calculate the amount of energy required to melt 35.0 grams of ice.
(not in sig figs) Hf = 80.0 cal/g, Hv = 560.0 cal/g, SH = 1.00 cal/g ºC
(not in sig figs) Hf = 80.0 cal/g, Hv = 560.0 cal/g, SH = 1.00 cal/g ºC
a)
19,600 cal
b)
35.0 cal
c)
2,800 cal
d)
1,568,000 cal
9.
How many calories are required to boil 75 grams of water?
(not in sig figs) Hf = 80.0 cal/g, Hv = 560.0 cal/g, SH = 1.00 cal/g ºC
(not in sig figs) Hf = 80.0 cal/g, Hv = 560.0 cal/g, SH = 1.00 cal/g ºC
a)
6,000 cal
b)
3,360,000 cal
c)
42,000 cal
d)
7.46 cal
10.
If a 8.50g ice cube at -10o C sits out on the counter, completely melts, and then warms to room temperature (25o C) how much energy did the ice cube absorb? Use C = 2.108 J/goC for ice, C = 4.184 J/goC for water, and Hf = 334 J/g.
a)
179.18 J
b)
2839 J
c)
889.1 J
d)
3907.3 J
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