Which of the following processes has a negative $\Delta S$ (change in entropy)?

  • A
    Dissolving sugar in water
  • B
    Adsorption of a gas on a solid surface
  • C
    $2NH_3(g) \rightarrow N_2(g) + 3H_2(g)$
  • D
    Sublimation of dry ice

Explore More

Similar Questions

Which of the following compounds is formed when tungsten adsorbs oxygen gas?

What is the number of molecular layers on the adsorbent in chemical adsorption?

In a Freundlich adsorption isotherm,if the slope is unity and $k$ is $0.1$,the extent of adsorption at $2 \ atm$ is $(\log 2 = 0.30)$

The given graphs $I$,$II$,and $III$ represent general trends observed for different physisorption and chemisorption processes under mild conditions of temperature and pressure. Which of the following statements are correct?

When a dilute aqueous solution of $AgNO_3$ (excess) is added to $KI$ solution,positively charged sol particles of $AgI$ are formed due to the adsorption of which ion?

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo