The activity of an ideal gas is numerically ____________ its pressure?
Correct answer: B. Equal to
- A. More than
- B. Equal to
- C. Less than
- D. Data insufficient, can't be predicted
Explanation
For an ideal gas, fugacity equals pressure, and activity is fugacity divided by the standard-state fugacity. Thus activity is numerically equal to pressure when the usual unit-pressure standard state is used.
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