Question

(b) A student carries out an experiment to find the specific heat capacity of aluminium. He uses

an electric heater and a thermometer inserted into separate holes in an aluminium block.

The following data are obtained.

mass of aluminium block = 2.0 kg

power of heating element = 420 W

time of heating = 95 s

initial temperature of block = 19.5 °C

final temperature of block = 40.5 °C

Calculate the value of the specific heat capacity of aluminium given by this experiment.

specific heat capacity = ...............................................

(c) In the experiment in (b), no attempt is made to prevent loss of thermal energy from the

surfaces of the block.

Suggest two actions the student could take to reduce the loss of thermal energy from the

surfaces of the block.

Answer 1

Answer:

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