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Mears Criterion for External Mass Transfer Calculator

Easily calculate and compute mears criterion for external mass transfer calculator with accurate equations, live formulas, and expert guidance.

Measured reaction rate per pellet volume.

Pellet characteristic dimension.

Reaction order.

External boundary layer mass transfer coefficient.

Reactant concentration in bulk flowing stream.

Calculated Result
0.01 index

Mears Criterion Parameter C_Mears

Mears Criterion Parameter C_Mears

0.01 index

Mears Parameter

0.005666666666666667

Is Film Resistance Significant

0

Pellet Radius Mm

1.5

0.01 — index

Calculation Breakdown

  1. Applied FormulaEvaluates interphase boundary layer external mass transfer limitations between bulk fluid and outer catalyst particle surfaces using Mears’ criterion.C_{Mears} = \frac{-r_{A,obs} R_p n}{k_c C_{Ab}} < 0.15

Mears External Diffusion Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.00.30.50.81.0Mears Criterion Parameter C_Mears

What Is the Mears Criterion for External Mass Transfer Calculator?

This tool computes mears criterion for external mass transfer calculator with high precision arithmetic.

How Does the Mears Criterion for External Mass Transfer Calculator Work?

Evaluates interphase boundary layer external mass transfer limitations between bulk fluid and outer catalyst particle surfaces using Mears’ criterion.

Mears Criterion for External Mass Transfer Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

CMears=−rA,obsRpnkcCAb<0.15C_{Mears} = \frac{-r_{A,obs} R_p n}{k_c C_{Ab}} < 0.15

Evaluates interphase boundary layer external mass transfer limitations between bulk fluid and outer catalyst particle surfaces using Mears’ criterion.

How to Use the Mears Criterion for External Mass Transfer Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Mears Criterion for External Mass Transfer Calculator Example

Input Values:

observedReactionRateMolM3S:8.5
pelletRadiusMm:1.5
reactionOrderN:1
massTransferCoeffMS:0.045
bulkConcentrationMolM3:50
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required index.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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