Question

give two reason to justify. 1)water at room temperature is a liquid. 2)an iron almirah is a solid at room temperature

Answer 1

1. water remains liquid as its boiling temperature is 100degree c and freezing pt. is 0degree c

2. an iron almirah needs a lot of temp. to melt however room temp. is quite low to melt it

Answer 2

A.1.because waters freezing point is below room temprature.
2.its intermolecular force keeps its particle binded.
B.1.its intermolecular force of attraction is very high.
2.its melting point is above room temprature.