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This quiz contains 12 questions from a mix of 1 subtopics.
Which of the following defines specific heat capacity?
the amount of energy needed to raise the temperature of 1 g of a substance by 1°C
the amount of energy needed to raise the temperature of 1 mole of a substance by 1°C
the amount of heat capacity per mole of a substance
the amount of energy needed to raise the temperature of 1 kg of a substance by 1°C
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When finding specific heat capacity experimentally, which measurement is NOT needed?
the energy supplied
the temperature change
the pressure
the mass
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If a substance has a higher specific heat capacity, adding the same amount of heat energy will result in:
the phase changing
no temperature change
a greater temperature change
a smaller temperature change
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In the equation E = mcΔθ, what does the symbol Δθ represent?
energy change
mass
specific heat capacity
change in temperature
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If a substance has a high specific heat capacity, it requires:
more energy to increase its temperature
the same amount of energy to increase its temperature as any other substance
none of the above
less energy to increase its temperature
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In a calorimetry experiment, the heat lost by a hot object is equal to:
the heat gained by the surrounding environment
the heat gained by the calorimeter
the heat gained by the water in the calorimeter
the heat gained by the thermometer
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In a calorimetry experiment, the heat gained by the water is calculated using:
the mass of the water and the specific heat capacity of the water
the mass of the water, the specific heat capacity of the water, and the change in temperature
the mass of the water and the change in temperature
the mass of the water, the specific heat capacity of the water, and the initial temperature of the water
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Describe the steps involved in determining the specific heat capacity of a substance experimentally.
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A student aims to calculate the energy required to raise the temperature of a 0.5 kg block of copper from 20°C to 60°C. The specific heat capacity of copper is 385 J kg-1°C-1. How much energy is needed?
3,850 J
15,400 J
19,250 J
7,700 J
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Calculate the specific heat capacity of a substance if 0.3 kg of it absorbs 4,500 J of energy to experience a temperature change from 25°C to 45°C.
1,500 J kg-1 °C-1
500 J kg-1 °C-1
300 J kg-1 °C-1
750 J kg-1 °C-1
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What amount of energy is needed to heat 2 kg of aluminium (specific heat capacity = 897 J kg-1 °C-1) from 30°C to 150°C?
215,280 J
431,760 J
53,820 J
107,640 J
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If 0.25 kg of water is heated from 15°C to 85°C, how much energy is required? The specific heat capacity of water is 4,200 J kg-1 K-1.
58,800 J
52,500 J
29,400 J
73,500 J
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