Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET 2014
Exam
NEET
Year
2014
Subject
Chemistry
Chapter
Surface Chemistry

NEET 2014 · Chemistry · Surface Chemistry

Which of the following statements is correct for the spontaneous...

Which of the following statements is correct for the spontaneous adsorption of a gas?

Options

  1. A∆S∆ S is negative and therefore, ∆H∆ H should be highly positive
  2. B∆S∆ S is negative and therefore, ∆H∆ H should be highly negative
  3. C∆S∆ S is positive and therefore, ∆H∆ H should be negative
  4. D∆S∆ S is positive and therefore, ∆H∆ H should also be highly positive

Correct answer

B. ∆S∆ S is negative and therefore, ∆H∆ H should be highly negative

Step-by-step solution

∆G=∆H−T∆S∆ G = ∆ H - T ∆ S
∆S=−ve∆ S = - ve for adsorption
So, ∆H∆ H must be −ve- ve to make ∆G=−ve∆ G = - ve
∆G=∆H−T∆S∆ G = ∆ H - T ∆ S
Practice Surface Chemistry on Quantrex Academy →

More from Surface Chemistry

Which of the following is a positively charged sol? NEET 2023Pumice stone is an example of NEET 2023Which one is an example of heterogenous catalysis? NEET 2023Shown below are adsorption isotherms for a gas ' X ' at temperatures T_1, ~T_2 and T_3… NEET 2022Given below are two statements : Statement I : In the coagulation of a negative sol, the… NEET 2022The right option for the statement "Tyndall effect is exhibited by", is: NEET 2021Measuring Zeta potential is useful in determining which property of colloidal solution? NEET 2020In which of the sols, the colloidal particles are with negative charge? NEET 2020 Full Surface Chemistry list All NEET PYQs