Heat Transfer Methods

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

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QUESTION NO 01

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

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QUESTION NO 02

Ideal gas law is?

Answer: PV = nRT

The equation of state for an ideal gas is PV = nRT.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 03

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

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QUESTION NO 04

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

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QUESTION NO 05

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

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QUESTION NO 06

Convection involves heat transfer by?

Answer: Bulk movement of fluid

Convection is heat carried by macroscopic motion of a fluid.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 07

Radiation can transfer heat through?

Answer: Vacuum

Thermal radiation (EM waves) propagates through vacuum.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 08

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

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QUESTION NO 09

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

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QUESTION NO 10

A process at constant pressure is called?

Answer: Isobaric

Isobaric means constant pressure.

Shahzad Mahota @shahzad-mahota

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Heat Transfer Methods

Latent heat is associated with?

Ideal gas law is?

Entropy of an isolated system in a spontaneous process?

Heat engine efficiency cannot be 100% because of?

Conduction is heat transfer through?

Convection involves heat transfer by?

Radiation can transfer heat through?

Triple point of water is approximately?

Internal energy of an ideal gas depends only on?

A process at constant pressure is called?

Published By

Shahzad Mahota

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00

00

00

00

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Heat Transfer Methods

Latent heat is associated with?

Explanation

Ideal gas law is?

Explanation

Entropy of an isolated system in a spontaneous process?

Explanation

Heat engine efficiency cannot be 100% because of?

Explanation

Conduction is heat transfer through?

Explanation

Convection involves heat transfer by?

Explanation

Radiation can transfer heat through?

Explanation

Triple point of water is approximately?

Explanation

Internal energy of an ideal gas depends only on?

Explanation

A process at constant pressure is called?

Explanation

Published By

Shahzad Mahota

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