In Which of the Following Changes Is the Work Done

question 16

Multiple Choice

In which of the following changes is the work done by the system the largest at 25°C?

• A) an isothermal reversible expansion of an ideal gas from 1 L to 10 L
• B) an isothermal expansion of an ideal gas from 1 L to 10 L against an opposing pressure of 5 atm
• C) an isothermal free expansion of an ideal gas from 1 L to 10 L
• D) an isothermal expansion of an ideal gas from 1 L to 10 L against an opposing pressure of 1 atm
• E) The work is the same for all these processes.

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Definitions:

Target Costing

A pricing strategy in which the selling price of a product is determined first, and then the manufacturing cost is managed to meet that selling price.

Mark-up

The amount added to the cost price of goods to cover overhead and profit.

Eliminate

The process of removing or getting rid of something.

Contribution Margin

The amount remaining from sales revenue after all variable costs have been deducted, indicating how much revenue is contributing to covering fixed costs and generating profit.