What is the lowest enthalpy of adsorption for physical adsorption?

1.	What is the lowest enthalpy of adsorption for physical adsorption?
A.	5 KJ mol<sup>-1</sup>
B.	10 KJ mol<sup>-1</sup>
C.	15 KJ mol<sup>-1</sup>
D.	25 KJ mol<sup>-1</sup>
Answer» C. 15 KJ mol<sup>-1</sup>

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What is the lowest enthalpy of adsorption for physical adsorption?

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