Thermodynamics

Heat, temperature, laws of thermodynamics, and thermal processes.

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QUESTION NO 01

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 02

In an isothermal process for an ideal gas,

Answer: Temperature remains constant

Isothermal means constant temperature; for ideal gas ΔU = 0.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 03

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

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QUESTION NO 04

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 05

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 06

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 07

Carnot engine operates between two?

Answer: Heat reservoirs

A Carnot engine exchanges heat with two reservoirs at different temperatures.

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

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QUESTION NO 09

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 10

In an isothermal process for an ideal gas,

Answer: Temperature remains constant

Isothermal means constant temperature; for ideal gas ΔU = 0.

Shahzad Mahota @shahzad-mahota

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Entropy of an isolated system in a spontaneous process?

In an isothermal process for an ideal gas,

A process at constant volume is called?

Conduction is heat transfer through?

Latent heat is associated with?

Entropy of an isolated system in a spontaneous process?

Carnot engine operates between two?

Radiation can transfer heat through?

Heat engine efficiency cannot be 100% because of?

In an isothermal process for an ideal gas,

Thermodynamics

More topics in Physics

All

Electricity & Magnetism

Mechanics

Modern Physics

Optics

Thermodynamics

Waves & Sound

Explore

Entropy of an isolated system in a spontaneous process?

Explanation

In an isothermal process for an ideal gas,

Explanation

A process at constant volume is called?

Explanation

Conduction is heat transfer through?

Explanation

Latent heat is associated with?

Explanation

Entropy of an isolated system in a spontaneous process?

Explanation

Carnot engine operates between two?

Explanation

Radiation can transfer heat through?

Explanation

Heat engine efficiency cannot be 100% because of?

Explanation

In an isothermal process for an ideal gas,

Explanation