The process of conversion of solid into liquid is
A) fusion
B) diffusion
C) boiling
D) changing
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The process of conversion of starch and sugar into ethanol by using enzymes is called
A) Fermentation
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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 process in which solid phase changes to liquid phase at a constant temperature is called
Correct option is B) melting
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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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The process in which the substance in liquid phase changes to solid phase is called ………………….
Correct option is C) freezing
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How long can an electric lamp of 100 W be kept glowing by fusion of 2 kg of deuterium? Take the fusion reaction as
Number of atoms present in 2 g of deuterium = 6 × 1023 Number of atoms present in 2.0 Kg of deuterium = 6 × 1026 Energy released in fusion of 2...
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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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In the reductive process, the conversion of nitrogen into ammonia occurs by
(b) rhizobium
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The latent heat of fusion of ice is 5.99 kJ/mol at its melting point. Then (i) `DeltaS` for fusion of 900 g ice and (ii) `DeltaS` for freezing of liqu
Correct Answer - C `DeltaS=(DeltaH)/(T)`
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The process by which a solid changes into a liquid is called
The process by which a solid change into a liquid is called melting.
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