Which mechanism limits the effectiveness of molecular sieve adsorbents in separating hydrocarbon isomers?

💡 Explanation

When separating isomers using molecular sieves, kinetic diameter exclusion occurs because the pore size is carefully selected to only allow the smaller isomer to enter and be adsorbed. Therefore, sieving is limited precisely by diameter differences, rather than polarizability or macroscopic behavior, which offer less fine separations.

• Which outcome reduces jet engine thrust when ambient temperature increases?
• Which mechanism initiates frictionless current flow in superconducting cable?
• Which consequence results when an Alcubierre drive compresses spacetime?
• Which outcome results when parasitic capacitance couples drive lines?
• Which risk increases when dissolved hydrogen causes metal embrittlement?
• Which effect increases when a microwave waveguide operates near its cutoff frequency?