A Container Is Divided into Two Chambers That Are Separated

question 11

Multiple Choice

A container is divided into two chambers that are separated by a valve.The left chamber contains one mole of a monatomic ideal gas.The right chamber is evacuated.At some instant,the valve is opened and the gas rushes freely into the right chamber.Which one of the following statements concerning this process is true?

• A)Work is done by the gas.
• B)The temperature of the gas decreases.
• C)The change in the entropy of the gas is zero.
• D)The walls of the containing vessel must get colder.
• E)The change in the internal energy of the gas is zero.

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Definitions:

Rate of Return

The gain or loss on an investment over a specified period, expressed as a percentage of the investment’s cost.

Equivalent Annual Cost

A financial analysis tool used to compare the cost effectiveness of two or more alternatives with different lifespans expressed on an annual basis.

Rate of Return

The gain or loss of an investment over a specified period, expressed as a percentage of the investment's initial cost.

Equivalent Annual Cost

A financial metric used to compare the cost-efficiency of different investments or projects with different lifespans, by calculating their annual costs.