Answer:
Determination
of boiling point of water:
(a) In a beaker take some water and
seal it with an aluminium block with one hole in it.
(b) Insert a thermometer in the hole of
aluminium block.
(c) Put the beaker on a tripod stand
and heat the apparatus with the help of kerosene burner slowly.
(d) Observe what happens to water.
(e) You will observe a steady stream of
bubbles. This temperature is this temperature is the boiling point of water.
Determination of melting point of
ice:
(a)Take crushed ice in a beaker and
insert a thermometer in the beaker by hanging it from the clamp of the stand in
such a way that the bulb of the thermometer is completely inside the ice.
(b) Wait for some time and keep
recording the temperature after small intervals of time.
(c) Note down the temperature when ice
just starts melting.
(d) Let the bulb of the thermometer
remain in mixture of ice and water for some more time and keep recording the
temperature.
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