Question

2.
questions
1. Convert the following
temperature to celsius scale
a. 300 K b. 5736
What is the physical state of
water at:
a. 250°C b. 100-C ?
3. For any substance, why does the
temperature remain constant
during the change of state
Suggest a method to liquet
atmospheric gases.​

Answer 1

Explanation:

a)To convert it into Celsius from Kelvin then 273 is to be subtracted from the given kelvin scale.......................... (1) 300k= 300-273=27°C.................. (2) 573K=573-273=300°C...

b)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. (b): At 100°C both liquid and gaseous states are present.

c)The temperature remain constant during the change of state because the heat supplied is used up in changing the state of matter as it has to work against the force of attraction of molecules.

Answer 2

Explanation:

a) To convert it into Celsius from Kelvin then 273 is to be subtracted from the given kelvin scale...

(1) 300k= 300-273=27°C................. (2) 573K=573-273=300°C...

b)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. (b): At 100°C both liquid and gaseous states are present.

c)The temperature remain constant during the change of state because the heat supplied is used up in changing the state of matter as it has to work against the force of attraction of molecules.