Question:
Gilliland’s equation and Underwood’s equation are used for the calculation of
Gilliland’s equation and Underwood’s equation are used for the calculation of
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In distillation column design, Gilliland’s and Underwood’s equations are essential tools for calculating tray efficiency and the number of real trays, which are critical for optimizing column performance.
Updated On: Feb 8, 2026
- min reflux ratio and tray efficiency
- number of real trays and tray efficiency
- tray efficiency and min reflux ratio
- tray efficiency and number of real trays
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the equations.
Gilliland’s equation and Underwood’s equation are both used in the design and analysis of distillation columns. Gilliland’s equation is used to determine the number of real trays based on the minimum reflux ratio and the tray efficiency. Underwood’s equation is used to calculate the minimum reflux ratio and the number of ideal trays for a given distillation process. Together, these equations help in determining the number of real trays and the tray efficiency in distillation columns.
Step 2: Conclusion.
The correct answer is (2), as Gilliland’s and Underwood’s equations are used to calculate the number of real trays and tray efficiency.
Gilliland’s equation and Underwood’s equation are both used in the design and analysis of distillation columns. Gilliland’s equation is used to determine the number of real trays based on the minimum reflux ratio and the tray efficiency. Underwood’s equation is used to calculate the minimum reflux ratio and the number of ideal trays for a given distillation process. Together, these equations help in determining the number of real trays and the tray efficiency in distillation columns.
Step 2: Conclusion.
The correct answer is (2), as Gilliland’s and Underwood’s equations are used to calculate the number of real trays and tray efficiency.
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