Suppose You Add 45 J of Heat to a System

question 45

Multiple Choice

Suppose you add 45 J of heat to a system, let it do 10. J of expansion work, and then return the system to its initial state by cooling and compression. Which statement is true for this process?

• A) (  H <  E)
• B) (  H = 70. J)
• C) The work done in compressing the system must exactly equal the work done by the system in the expansion step.
• D) The change in the internal energy for this process is zero.

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Definitions:

Sales Mix

Sales mix refers to the proportion of different products or services sold by a company, influencing decisions on pricing, marketing, and production.

Variable Expenses

Costs that vary in direct proportion to changes in an organization's activity level or volume of output.

Fixed Expenses

Costs that remain constant for a given period of time, regardless of changes in production level, sales volume, or other business activities.

Total Sales

The sum of all revenue generated from the sale of goods or services in a specific period before any deductions.