The fractional volume change of the system for the isothermal gas phase reaction, A → 3B, between no conversion and complete conversion is___________________?
Correct answer: C. 2
- A. 0.5
- B. 1
- C. 2
- D. 3
Explanation
For A → 3B, one mole of A becomes three total moles, and at constant temperature and pressure gas volume is proportional to total moles. Thus V_f/V_0 = 3 and the fractional change is (3−1) = 2.
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