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A level Exchange of substances, Energy transfers, Responses of organisms 2021
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3

January 2023

2022/2023

A
A 2g sample of biomass was fully combusted in a calorimeter. The volume of water was 100cm3. The increase in temperature recorded was 15.7C. 4.18 J of energy are needed to increase the temperature of 1c,3 of water by 1C. Use this information to calculate the heat energy released in kJ per g of biomass. (2) - 3.3kJg-1 A student correctly plotted the right ventricle on the same grid as the left ventricle in Figure 3. Describe one way the student's curve would be similar and one way it wo...
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