An Ideal Gas in a Balloon Is Kept in Thermal

question 30

Multiple Choice

An ideal gas in a balloon is kept in thermal equilibrium with its constant-temperature surroundings. How much work is done by the gas if the outside pressure is slowly reduced, allowing the balloon to expand to 6.0 times its original size? The balloon initially has a pressure of 645.0 Pa and a volume of 0.10 m³. The ideal gas constant is R = 8.314 J/mol ∙ K.

• A) 120 J
• B) 390 J
• C) -330 J
• D) 6.0 J

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Definitions:

Confidence Interval

An expanse of values, extracted from the analysis of sample data, believed to incorporate the value of a non-identified population parameter.

Population Mean

The average value of a set of data across an entire population.

Sample Size

The number of observations or data points collected from a larger population for the purpose of statistical analysis.

Confidence Interval

A set of values gathered from sample statistics that is presumed to hold the value of an undetermined population parameter.