The liquid which expands during its change of state into solid state is ………………….
A) water
B) alcohol
C) mercury
D) liquid wax
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Compare change of state from solid to liquid and from liquid to vapour.
Solid to liquid Liquid to vapour i. The change of state from solid to liquid is called melting and from liquid to solid is called solidification. The change of state from liquid to vapour is called...
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The phase change from liquid to gas that occurs at the surface of liquid at any temperature is called..........
D) evaporation
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The latent heat of vapourization of liquid of “m”gm when the heat energy of “Q” calories is supplied to change its state from liquid to gas is ………………
Q = mL so, L = Q/m. Hence, the correct option is (B) Q/m
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The latent heat of vapourization of liquid of “m”gm when the heat energy of “Q” calories is supplied to change its state from liquid to gas is ………………
2 Answers
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The heat energy required to convert 1 gm of solid completely into liquid at a constant temperature is called ……………….
C) latent heat of fusion
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The latent heat of fusion of a solid ‘ substance of mass “m” is L. The required amount of heat to change solid phase to liquid phase is ……………… cal.
Correct option is A) Q = mL
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Relative density of a liquid = …………… A) weight of the liquid/weight of the solid
C) \(\cfrac{weight\,of\,the\,liquid}{weight\,of\,same\,volume\,of\,water}\)
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On dissolving solid in liquid, ………… particles enter into space between the …………. particles.
B) melting point
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The process of conversion of solid into liquid is A) fusion
Correct option is A) fusion
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Sublimation of Iodine is a (a) Chemical change (b) Physical change (c) Natural change (d) Undesirable change
(b) physical change
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