Question

please solve these questions properly ..

Answer 1

1) 300K-273K= 27C

573K-273K=300C

2) a) Water vapour gas

b)boiling water liquid

3) because the heat supplied is used in the conversion of the state of matters. It is hidden and is termed as latent heat

4)By lowering the temperature or increasing the pressure.

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Answer 2

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1- a) 27
  b) 300

2- a) Vapour
  b) Vapour

3- Temperature is constant during change in state because the energy is used to change from one state to another instead of increase in temperature.

4-By giving pressure and increasing temperature.

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