The melting point depends on
A) space among its particles
B) force of attraction among its particles
C) shape of the substance
D) state of the substance
1 Answers
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What happens when heat is supplied to a solid at its melting point?
1. When heat is supplied to a solid at its melting point, average kinetic energy of constituent particles does not change. 2. As a result, temperature of body remains constant. 3. Supplied energy...
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Why is density of liquid at melting point nearly same as density of solids at melting point?
1. During change of state from solid to liquid, mass of substance does not change. 2. Also, mean distance between particles during change of state does not alter at melting point. 3....
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What happens when heat is supplied to liquid its freezing point (melting point)?
1. On heating, the atoms/molecules in liquid gain kinetic energy and temperature of the liquid increases. 2. If liquid is continued to heat further, at the boiling point, the constituents overcome...
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The ore is heated in the presence of oxygen or air below its melting point is called ……………..
Correct option is B) Roasting
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(i) The triple-point of water is a standard fixed point in modern thermometry. Why? What is wrong in taking the melting point
(i) The triple point of water has been assigned a fixed value of 273.15 K. This number represents a unique value associated with a unique condition of temperature and pressure...
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Rutherford allowed the alpha particles to pass through ………………. in his alpha particles scattering experiment.
Correct option is D) gold foil
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On dissolving solid in liquid, ………… particles enter into space between the …………. particles.
B) melting point
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The melting point of substance depends ………….. on among the particles.
A) force of attraction
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For a given substance, in which state of matter is the space between its constituent particles the maximum?
C) In gaseous state
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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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