The amount of heat energy that is required to overcome the attractive force among the particles to change the state is given by ………… of the substance.
A) specific heat
B) heat capacity
C) latent heat
D) none of these
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Calculate the amount of heat energy to be supplied to convert 2 kg of ice at 0 °C completely into water at 0 °C if latent heat of fusion
Mass (m) = 2 kg = 2 × 103 g. latent heat of fusion for ice (L) = 80 cal/g. To find: Heat energy (Q) Formula: Q = mL From formula, Q = 2 × 103 ×...
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The heat energy required to change 1gm of liquid to gas at constant temperature is called …………………..
B) latent heat of vapourization
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The heat energy required to change 1gm of liquid to gas at constant temperature is called …………………..
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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 ………………
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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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State conditions for electrostatic force to be attractive or repulsive.
1. The force between the two charges will be attractive, if the charges are unlike (one positive and one negative). 2. The force between the two charges will be repulsive, if...
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The amount of heat energy that is required to overcome the attractive force among the particles to change the state
C) latent heat
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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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The attractive force which holdes various constituents togrther in different chemical species is called
Correct Answer - B it is the correct answer.
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