Question

Give two reason to justify that:
1. water is a liquid at room temperature.
2.an iron almirah is solid.

Answer 1

1)At room temperature (anywhere from zero degree centigrade to 100 degrees centigrade), water is found in a liquid state. This is because of the tiny, weak hydrogen bonds which, in their billions, hold water molecules together for small fractions of a second

2)The melting and boiling points of most of the metals are very high. The room temperature is about 20-25 degree centigrade. But the melting point of iron is 1538 degree centigrade. So, the iron almirah is a solid at room temperature.