Question

questions:

1.Convert the following temperature to celsius scale :

a . 300 K b . 573 K


2. 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 ?

4. Suggest a method to liquefy atmospheric gases ?​

Answer 1

Answer:

1 a) 300-273=27

b) 573-273=300

2 a) liquid

b) vapour

3 it is because the heat energy which is supplied to change the state of matter is used in breaking the intermolecular forces and other attractive forces. hence the temperature remains constant as all the heat is used up.

4 atmospheric gases can liquefy by applying pressure and lowering temperature.