If 356 J of Work Is Done by a System

question 91

Multiple Choice

If 356 J of work is done by a system while it loses 289 J of heat, what is the value of ΔU ?

• A) +645 J
• B) -645 J
• C) +67 J
• D) -67 J
• E) +134 J

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Definitions:

Decimal Point

A dot or small symbol used to separate the integer part from the fractional part of a number written in decimal form.

Multiplication

A fundamental mathematical operation that represents the repeated addition of a number by itself a specified number of times.

Division

In business, a division refers to a distinct part of a company that focuses on a particular market, product line, or service, often operating with a certain degree of independence.

Decimal Point

A symbol used to separate the integer part from the fractional part of a number in decimal notation.