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Firefox File Edit View History Bookmarks Tools Window Help MasteringPhysics: Homework 12 (Ch.11,12) https://session.masteringphysics.com/myct/itemView?assignmentProblemiD-80194624&offset-next; Homework 12 (Ch.1112) Problem 11.22- Enhanced-with Feedback Problem 11.22 - Enhanced -with Feedback Part A 18 J of heat are removed from a gas sample whille it is being compressed by a piston that does 28 J of work What is the change in the thermal energy of the gas? Express your answer using two significant figures You may want to review(L pages 331-332) Submit My Answers Give Up Part B How does the temperature of the gas change? O Decreases Does not change 0 It is impossible to determine. Submit My Answers Give Up

Explanation / Answer

Solution:

A)

As we know;

Energy in = Energy out

=> 28 J = 18 J + Thermal energy

=> Thermal energy = +10 J

B)

As we know;

Thermal energy refers to the internal energy present in a system due to its temperature.

as,

Thermal energy = +10 J

=> Increase in internal energy will result in an increase in temperature.

=> Temperature of the gas increases!

(A)

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