Question

Give two reasons to justify :
$\left(a\right)$ Water at room temperature is a liquid.
$\left(b\right)$ An iron almirah is a solid at room temperature.

Answer 1

(a) Water at room temperature is a liquid because it boils at 373 K and the room temperature is nearly ${20}^{\circ }C-{25}^{\circ }C$.

The solidification point is $0^{\circ }C$ It will remain in a liquid state.

It does not have a definite shape but has a definite volume at room temperature.

So these are properties of a liquid state.

(b) An iron almirah is a solid at room temperature because it has a definite shape and definite volume.

So the properties mentioned are satisfied by the solid-state only.