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On what factors does internal energy of a gas depends upon ?

On what factors does internal energy of a gas depends upon ?

Grade:12th pass

1 Answers

Raheema Javed
156 Points
9 years ago

•Factors affecting Internal Energy
•The internal energy can be changed by changing the temperature or volume of the object without changing the amount of particles in the object.

•Temperature: If the temperature of a system rises, the molecules will travel quicker, therefore have more kinetic energy and so the Internal Energy will increase.
•Pressure: If the pressure falls but the temp doesn’t change then there is no change in the internal energy of a system. In a non-ideal expanding gas the molecules have to overcome the attraction to each other and therefore some work must be done on them and therefore the internal energy must increase.
•State: For most materials that change from solid to liquid the volume increases and so the potential energy of the molecules increases.

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