Phase Changes & Latent Heat

Quiz on melting, boiling, and latent heat. Ideal for students preparing board exams and competitive tests.

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Phase Changes & Latent Heat
QUESTION NO 01
Thermal conductivity is highest typically for?

Answer: Metals
Metals generally have high thermal conductivity due to free electrons.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
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QUESTION NO 02
Carnot engine operates between two?

Answer: Heat reservoirs
A Carnot engine exchanges heat with two reservoirs at different temperatures.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
52 Quizzes
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QUESTION NO 03
Zeroth law of thermodynamics introduces the concept of?

Answer: Temperature
Zeroth law justifies temperature as a transitive equilibrium property.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
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QUESTION NO 04
A process at constant volume is called?

Answer: Isochoric
Isochoric (isovolumetric) means constant volume; W = 0 for quasi-static PdV work.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
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QUESTION NO 05
A process at constant pressure is called?

Answer: Isobaric
Isobaric means constant pressure.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
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QUESTION NO 06
Internal energy of an ideal gas depends only on?

Answer: Temperature
For an ideal gas, U is a function of temperature alone.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
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QUESTION NO 07
Triple point of water is approximately?

Answer: 0.01 °C at 611 Pa
Water's triple point is 0.01 °C and about 611.657 Pa.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
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QUESTION NO 08
Radiation can transfer heat through?

Answer: Vacuum
Thermal radiation (EM waves) propagates through vacuum.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
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QUESTION NO 09
Convection involves heat transfer by?

Answer: Bulk movement of fluid
Convection is heat carried by macroscopic motion of a fluid.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
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QUESTION NO 10
Conduction is heat transfer through?

Answer: Direct molecular contact in matter
Conduction transfers heat via particle collisions/contact within a material.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
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Shahzad Mahota

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