The heat energy required to change 1gm of liquid to gas at constant temperature is called …………………..
A) specific heat
B) latent heat of vapourization
C) latent heat of fusion
D) calorie
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Fill in the blanks If heat energy is given to a substance and its temperature remains constant then the substance undergoes a change in_______.
Correct Answer - state
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Fill in the blanks The temperature at which a liquid convert to gaseous state is called ________ of a liquid.
Correct Answer - boiling point
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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 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 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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How much heat energy is required to convert 1 gm of ice to liquid
Correct option is B) 80 cal
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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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What do you to change a substance from gas state to liquid state ? A) By giving heat
Correct option is D) B or D
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