Specific Heat Capacity & Specific Latent Heat
1. This question has 4 part(s).
1.1. Different substances have different values of specific heat capacity.
Identify, by placing a tick (✓) in Table 1.1, next to the statements that correctly describe the specific heat capacity of different substances.
Table 1.1
Statements | (✓) here if the statement is correct |
If a substance has a low specific heat capacity it heats up and cools down slowly. | |
If a substance has a high specific heat capacity, it heats up and cools down slowly. | |
The specific heat capacity of different substances determines how useful they would be for a specific purpose. |
1.2. Use your answers to part (a) to complete this question.
(i) One of the statements in incorrect.
Determine the correct statement by writing it in the space below.
[1]
(ii) State a situation when it can help to know about the specific heat capacities of different materials.
[1]
1.3. A beaker containing 0.5 kg of liquid is heated with 3000 J of energy through a temperature change of 75 °C.
Calculate the specific heat capacity of the liquid.
specific heat capacity = .................................. J kg−1 °C−1
1.4. A different liquid of mass 0.75 kg requires 60 000 J to boil.
Calculate the specific latent heat of vapourisation of the liquid.
specific latent heat of vapourisation = ............................ J kg−1
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