How do the compressibility factor values (ratio of real gas volume to ideal gas volume) compare across all gases under identical conditions_______________?
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Answer: D. Both B. & C
Explanation
The theorem of corresponding states dictates that compressibility depends on reduced properties. Gases share identical compressibility factors when evaluated at the same reduced temperature. Matching reduced pressures also ensures equal compressibility factor values across different gases. Compressibility factor is the ratio of real gas molar volume to ideal gas molar volume. Reduced temperature is actual temperature divided by critical absolute temperature. Reduced pressure is actual pressure divided by critical absolute pressure.
Industrial chemical engineers use generalized charts to estimate real gas volumes accurately. Pipeline transport calculations rely on reduced property correlations for natural gas mixtures. Simplified thermodynamic estimations prevent the need for complex custom equation fitting. Always greater than one is false because compressibility factors can be less than one. Option B alone is incomplete because reduced pressure also influences compressibility factors. Option C alone is incomplete because reduced temperature is equally important for corresponding states.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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