Question

willem has to measure the specific heat capacity of copper.He has a copper block , which he heats with an electrical heater.The heater supplies energy to the block at 50J/ sec . A) What two other measurements will he require in order to calculate the heat capacity of steel. B) Explain why the block must be well insulated if he is to obtain an accurate result. C) If the block is poorly insulated . will Willems result be too high or too low

Answer 1

The answer to Willem's experiment are as follows;

A) The two other measurements Willem will require to calculate the specific heat capacity of copper are;

• The mass of the copper block
• The change in temperature of the copper block after heat is supplied.

B) The block must be well insulated to ensure no heat energy is lost to the surrounding by conduction, convection and radiation and hence, all heat supplied is used to effect a change in temperature in the copper block as intended.

C) If the block is poorly insulated, energy is lost and hence, the result would be too high because more energy would be consumed in the process.

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