Heat and Thermodynamics MCQ question and answer with solution

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Each section contains 100 MCQs on Heat and Thermodynamics .

Which is the branch of physics related to heat?

A) Optics B) Acoustics C) Thermodynamics D) Relativity

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Specific heat of gas can have

A) any positive value ranging from zero to infinity B) always negative value C) any positive value ranging from five to infinity D) zero value

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Heat is not directly related to-

A) Measurement of thermal energy B) Speed of molecules C) Transfer via electromagnetic waves D) Thermodynamic properties of substances

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

A glass bottle containing water tightly corked breaks when it is kep in freeze, because

A) Bottle shrinks on freezing B) The volume of water decreases on freezing C) The volume of water increases on freezing D) Glass is the bad conductor of heat

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which one of the following is used as an antifreeze for the automobile engines?

A) Ethanol B) Ethylene glycol C) Methanol D) Propyl alcohol

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Answer & Solution

Answer: Option B

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What is absolute zero temperature?

A) The starting point of any temperature scale B) Theoretically the lowest possible temperature C) The temperature at which the vapour of any liquid substance is condensed D) The temperature at which all material are in vapour form

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Answer & Solution

Answer: Option B

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Which of the following resistors is known as a heat sensitive resistor?

A) thermistor B) dipole C) transistor D) capacitor

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Answer & Solution

Answer: Option A

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What is the temperature when a solid object melts at atmospheric pressure to become a liquid?

A) Melting point B) Latent heat C) Boiling point D) Latent heat of fusion

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What would be the change in enthalpy (ΔH) for an ideal gas equation if the change in temperature (ΔT) is given-
C_p Heat capacity at constant pressure
C_v Heat capacity at constant volume

A) C_vΔ T B) $$\frac{{{C_p}}}{{{C_v}}}\Delta T$$ C) $$\frac{{{C_v}}}{{Cp}}\Delta T$$ D) C_pΔ T

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

A reversible and an irreversible engines are working between the same limits of temperature. The efficiency of

A) reversible engine is greater than the irreversible engine B) two engines are equal C) each engine is 100% D) irreversible engine is greater than the reversible engine

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

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Heat and Thermodynamics MCQ question and answer with solution | Physics Gk MCQs