Question

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.

one word or one sentence answer
most proper one will be marked brainliest​

Answer 1

Answer:

1.

a)27°C

b)300°C

2.

a)gas (water vapour).

b)liquid.

3.

because all the energy is used up in breaking the intermolecular force between atoms and other attarctive forces..

4.

to decrese the temperature until it is liquified.

Answer 2

Answer:

1.(a) 300K - 273K = 27C

1.(b) 573K - 273K = 300C

2.(a) Gaseous form, after water reaches its boiling point (which is 100C) it starts vaporizing and turns into steam

2.(b) since boiling point of water is 100C, when it reaches the boiling point, it changes to steam. hence at 100C it is in its gaseous form

3. For any substance the temperature remains constant because, the heat given to the substance is used in the breaking of the intermolecular force of attraction between bonds. so therefore no heat is left. this is called latent heat.

4. The method to liquify atmospheric gases is by the process of compression. It means, the molecules are brought closer to each other so that they are given a structure or a form. as gases are the result of heating and we know that heating causes expansion, the way to liquify atmospheric gases is to cool. as we cool them down, the molecules shrink together and we know cooling causes shrinking. Hence compression is one methods used

Explanation: