Question

show that the rate of rise in temperature depends on the nature of the substance

Answer 1

Take equal weights of oil and water in
two deep frying pans or two suitable
utensils of the same size and material.
Take half a litre of water weighing 1/2
kg and take 1/2 bottle of oil weighing
1/2 kg.

Put both of them on the gas stove with
the same intensity of flame (in SIM
position for example).

Observe the initial temperature in both
liquids. Write them down on paper.
After every three minutes write down
the temperatures of both liquids. Dip
the thermometer in the liquids for 20
seconds for the thermometer to read
the temperature correctly.

After 3 readings you will observe that
the oil heats up and rises in
temperature faster than water. Be
cautious in selecting a thermometer
which has a range from 20 deg C to 80
deg C.

This experiment proves that the rate
of rise in temperature depends on the
substance.

The dependency of rise of temperature
on substance is called the specific heat
(or heat capacity) of the substance.

In the above experiment: AQ = m
SAT

AQ. and m are chosen to be same.
SO AT is more for oil which has less
value of "s" specific heat.