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WorksheetsCALORIMETRY
Total questions: 10
Worksheet time: 15mins
Name
Class
Date
1.
What is a Calorimetry in Chemistry.
a)
A calorimetry is used to measure amounts of heat transferred to or from a substance.
b)
The amount of energy an object has.
c)
Change in heat.
d)
None of the above.
2.
What is the equations for the Calorimetry.
a)
None of the above.
b)
q=mcΔt, q=cmΔt.
3.
Please determine the specific heat of a material is a 30g sample absorbed 34J and it was heated from 55C.
a)
0.033456
b)
334.56
c)
335.0
d)
None of the above.
4.
A 47 gram piece of ice is heated from -10 degrees C to liquid water 85 degrees C. How much energy is absorbed.
a)
24,650 J
b)
33,000
c)
33,000 J
d)
39.650 J
5.
A piece of Iron with a mass of 7.68 g increases its temperature to about 20.0 C-95.0 C and gains 522.5 Joules of energy. What is the specific heat of the metal.
a)
300960
b)
345.65
c)
379.99
d)
300.96
6.
The heat capacity of iron is 0.900 J/gC. How much energy is needed to raise the temperature of a 8.50×102g block of iron from 22.8 C-94.6 C.
a)
54927
b)
54900
c)
5565
d)
3545
7.
If a sample of chloroform is initially at 25 C, what is its final temperature if 150.0 g of chloroform absorbs 1.5 kJ of heat, and the specific heat of chloroform is 0.96 J/g C.
a)
35.42
b)
273.170
8.
An aluminum can with a mass of 12.5 grams and a Cp of .90 J/gC absorbs 245 joules of heat. By how much does the temperature rise by.
a)
21.99999999
b)
45 C
c)
32 C
d)
22 C
9.
A 15.75 g piece of metal absorbs 1086.75 joules of heat energy, and its temperature changes from 25 C to 175 C. Calculate the specific heat capacity (J/g C) of the metal.
a)
1.25 J/g C
b)
0.999 J/g C
c)
0.46 J/g C
d)
5.999 J/g C
10.
How much heat is absorbed when 500. g of water , Cp = 4.184 J/goC, goes from 25.0 oC to 35.0 oC?
a)
12,750 J
b)
20,920 J
c)
76.999 J
d)
56.99
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