1.

The process of phase transition from solid to liquid involves the following steps. Arrange them in a proper sequence. (a) Molecules become free to move and thus attain molecular arrangement of liquid. (b) The energy supplied makes the molecules to vibrate more. (c ) During melting, the molecules overcome the forces of attraction between them. (d) the molecules acquire rotatory motion, translatory motion in additionto vibratory motion.

Answer»

c d a b
b c d a
c d b a
None of these

Solution :(i) The ENERGY SUPPLIED makes the molecules to vibrate with more speed.
(ii) During melting, the molecules overcome the forces of ATTRACTION between them.
(iii) The molecules ACQUIRE rotatory motion, TRANSLATORY motion in addition to vibratory motion.
(iv) Moleculesbecome free to move and thus attain the molecular arrangement of a liquid.


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