Name: ____________________________ Form: _______
Worksheet 2 - Specific Heat Capacity.
Exercise 1: A pot is filled with 9kg of water at 10oC. Calculate how much heat energy
would be needed to raise the temperature to 60oC.
[specific heat capacity of water = 4200J/kgoC ]
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Exercise 2: A girl during a hike has a bottle of mineral water in her haversack. The
bottle has 2 litres of water in it (2ltr. weigh 2kg). The water gets heated
by the sun by 5oC. How much heat has the water absorbed from the
sun?
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Exercise 3: When the temperature of 0.25kg of ice-cream is increased
from -10oC to -2oC, the heat supplied is 3000J. Find the
specific heat capacity of the ice-cream.
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Exercise 4: A refrigerator is used to cool 3ltr of soft drink from room temperature
(23oC) down to 5oC.
i. If the density of the soft drink is 1015kg/m3, calculate the mass of the soft drink.
[1ltr = 0.001m3] {density = mass/volume}
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ii. How much heat energy must be removed if the specific heat capacity of the soft drink
is 4150J/kgoC.
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iii. How long will this take if the refrigerator removes heat energy at a rate of 18J/s?
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Worksheet 2 - Specific Heat Capacity.
