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Heat Transfer Methods

Distinguish conduction, convection, and radiation clearly. Ideal for students preparing board exams and competitive tests.

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Heat Transfer Methods
QUESTION NO 01
A process at constant pressure is called?

Answer: Isobaric
Isobaric means constant pressure.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
52 Quizzes
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QUESTION NO 02
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
52 Quizzes
430 Questions
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QUESTION NO 03
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
52 Quizzes
430 Questions
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QUESTION NO 04
Radiation can transfer heat through?

Answer: Vacuum
Thermal radiation (EM waves) propagates through vacuum.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
52 Quizzes
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QUESTION NO 05
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
52 Quizzes
430 Questions
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QUESTION NO 06
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
52 Quizzes
430 Questions
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QUESTION NO 07
Heat engine efficiency cannot be 100% because of?

Answer: Second law of thermodynamics
The second law forbids a perfect heat engine that converts all heat to work with no other effect.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
52 Quizzes
430 Questions
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QUESTION NO 08
Entropy of an isolated system in a spontaneous process?

Answer: Increases or stays the same
Second law: entropy of an isolated system never decreases.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
52 Quizzes
430 Questions
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QUESTION NO 09
Ideal gas law is?

Answer: PV = nRT
The equation of state for an ideal gas is PV = nRT.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
52 Quizzes
430 Questions
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QUESTION NO 10
Latent heat is associated with?

Answer: Change of phase at constant temperature
Latent heat is energy absorbed/released during phase change at constant T.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
52 Quizzes
430 Questions
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Shahzad Mahota

dev.shahzadmahota@gmail.com

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