Matter ‘X’ is heated in a bunsen flame. Initially its temperature increases and when the temperature reaches ‘T’ it started to change its state to ‘Y’ where the kinetic energy of its particles is maximum. X takes the shape of the container containing it. (i) Identify the physical states ‘X’ and ‘Y’.Give an example. (ii) What is the temperature ‘T’? (iii) What will be the status of pressure during the change of state?
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(i) The physical state of,
- X = Liquid
- Y = Gas.
For instànce, when we provide heat to water till it becomes vapour.
(ii) Here, X (liquid), when heated to 'T', changed into Y (gas), that means, T = boiling point.
(iii) Pressure in the contained will increase due to frequent collision of particles with the surface of the container. (Gas pressure.)
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