The Temperature of N Moles of a Gas Is Increased

question 22

Multiple Choice

The temperature of n moles of a gas is increased from T_i to T_f at constant pressure.If the molar specific heat at constant pressure is C_p and is independent of temperature, then change in the entropy of the gas is:

• A)nC_p ln(T_f/T_i)
• B)nC_p ln(T_i/T_f)
• C)nC_p ln(T_f - T_i)
• D)nC_p ln(1 - T_i/T_f)
• E)nC_p (T_f - T_i)

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Definitions:

Mean

The average of a set of numbers, found by dividing the sum of all the values by the number of values.

Central Tendency

A numerical metric that pinpoints a sole figure to typify a whole data distribution, often utilizing the mean, median, or mode.

Data

Facts and statistics collected together for reference or analysis, often used as a basis for making decisions or drawing conclusions.

Median

The middle value of a dataset arranged in order of magnitude, or the mean of the two middle values if the set has an even number of observations.