Question

Precautions for the experiment to determine melting point od ice and boiling point of water

Answer 1

 For melting point of ice:
Precautions:
1.The bulb of the thermometer should be kept surrounded with ice cubes.
2.Ice should be stirred regularly to keep a uniform temperature throughout.
3.Note temperature by keeping your eyes in line with the level of mercury.

For boiling point of water:
Precautions:
1. The bulb of the thermometer should be kept about 4-5 cm above the surface of water.
2.Pieces of pumice stone should be added to water before heating to avoid bumping.
3.Heating of water should be done by rotating the flame.Note temperature by keeping your eyes in line with the level of mercury.

Answer 2

Answer:

 For melting point of ice:

Precautions:

1.The bulb of the thermometer should be kept surrounded with ice cubes.

2.Ice should be stirred regularly to keep a uniform temperature throughout.

3.Note temperature by keeping your eyes in line with the level of mercury.

For boiling point of water:

Precautions:

1. The bulb of the thermometer should be kept about 4-5 cm above the surface of water.

2.Pieces of pumice stone should be added to water before heating to avoid bumping.

3.Heating of water should be done by rotating the flame.Note temperature by keeping your eyes in line with the level of mercury.