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Out of solid, liquid and gas of the same mass and at the same temperature, which one has the least internal energy?

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in Engineering Physics I by (558k points)
Out of solid, liquid and gas of the same mass and at the same temperature, which one has the least internal energy?

(a) Solid

(b) Liquid

(c) Gas

(d) All three have the same internal energy

I have been asked this question during an online exam.

My enquiry is from Isothermic and Adiabatic Process in chapter Kinetic Theory of Gases of Engineering Physics I

1 Answer

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Best answer
The correct option is (a) Solid

Easiest explanation: The one which has small potential energy has the greatest internal energy. On the other hand, the one which has large potential energy has the least internal energy; therefore the internal energy of the solid is least.

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