Question

(xxvi) What will be the physical!
condition of water in different
temperature given below?
(i) 250°C
(ii) 25°C
(iii) 100°C (iv) 0°C​

Answer 1

Answer:

(!)Vapour.

(!!) Liquid.

(!!!)Water and vapour both.

(!v) Liquid.

Answer 2

Answer:

( i ) 250°C - Water at 250°C is gaseous state

( ii ) 25°C - Water at 25°C is present in the liquid state.

( iii ) 100°C - At 100°C, water exists in a Gaseous state as well   as Liquid state .

( iv ) 0°C - At 0°C,  water exists in solid-state.

Explanation:

( i ) 250°C - Physical state of water at 250°C is gaseous state because the  boiling point of water is 100°C. Therefore at a temperature higher than its boiling point. It exists as gas.

( ii ) 25°C -  25°C, the physical state of water is a liquid because 0°C is the freezing point. Therefore a temperature above 0°C and below 100°C exists in liquid state

( iii ) 100°C - At 100°C, water exists in a Gaseous state as well as liquid state as we know that the boiling point of water is 100°C. The water starts to evaporate after attaining this high temperature. Some water remains in the beaker also

( iv ) 0°C - At 0°C, water exists in solid-state. We know that the freezing point of water is 0 °C. The liquid form of water starts to become solid (ice) at this temperature.

hope it helps u ..