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In this video, we explore the concepts of heat energy measurement. We discuss how heat supplied to a substance affects its temperature change at constant mass and how mass influences temperature change at constant heat supply.
Learn about specific heat capacity and thermal capacity, along with their definitions. We also show how to calculate heat energy using the formula
Q = mcΔT without a change of state. Additionally, we cover the assumptions behind experiments measuring heat quantities and solve problems related to latent heat.
OBJECTIVES:
1. Explain the relationship between the heat supplied to a substance and (i) its temperature change at constant mass and (ii) its mass at constant temperature change.
2. Explain the terms specific heat capacity and thermal capacity
3. Calculate unknown quantities using the relation Q = mcΔT when no change of state is involved
4. State the assumptions underlying the experiments involving the measurements of heat quantities
5. Solve simple problems involving latent heat.
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