Specific Heat Capacity

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What is specific heat capacity?

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Specific heat capacity is the amount of heat energy required to raise the temperature of 1 kg of a substance by 1°C.

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What is the equation for specific heat capacity?

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If 2 kg of water and 4 kg of water are heated to the same temperature, which requires more energy?

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4 kg of water needs twice the energy that 2 kg of water needs.

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What happens to energy when 1 kg of water cools from 100°C to 20°C?

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It gives out 336 kJ of energy.

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How much energy is needed to heat 10 kg of aluminium from 120°C to 220°C?

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897,000 J of energy is needed.

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What is the final temperature of 2 kg of glass at 20°C when given 84,000 J of energy?

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The final temperature is 70°C.

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What does the symbol 'Q' represent in the specific heat capacity equation?

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'Q' represents the amount of heat energy transferred.

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'm' stands for the mass of the substance.

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What does 'c' represent in the specific heat capacity equation?

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'c' represents the specific heat capacity of the substance.

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