A 610-G Quantity of an Ideal Gas Undergoes a Reversible

question 35

Multiple Choice

A 610-g quantity of an ideal gas undergoes a reversible isothermal compression at a temperature of 330 K. The compression reduces the volume of the gas from 0.40 m³ initially, to 0.21 m³ finally. The molecular mass of the gas is 33.0 g/mol, and the ideal gas constant is R = 8.314 J/(mol∙K) . The entropy change for the gas is closest to

• A) -99 J/K.
• B) -81 J/K.
• C) 99 J/K.
• D) 81 J/K.
• E) 0.00 J/K.

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