Question

2. Give two reasons to justify why
(a) water at room temperature is a liquid.
(b) an iron almirah is a solid at room temperature,​

Answer 1

At room temperature (25°C), water is a liquid because it has the following characteristics of liquid: At room temperature, water has no shape but has a fixed volume i.e., it occupies the shape of the container in which it is kept. At room temperature, water flows easily.

An iron almirah is a solid at room temperature (25°C) because: It has a definite and rigid shape and. Fixed volume like a solid at room temperature. On applying external force the shape does not get deformed.

Answer 2

Answer:

a. At room temperature (25°C), water is a liquid because it has the following characteristics of liquid: At room temperature, water has no shape but has a fixed volume i.e., it occupies the shape of the container in which it is kept. At room temperature, water flows easily.

b. An iron almirah is a solid at room temperature because its melting point as well as boiling point is above room temperature. Similarly, (i) An iron almirah is rigid and has a fixed shape. ... Hence, iron almirah is a solid at room temperature.