Import Question JSON

Current Question (ID: 18391)

Question:

$\text{The factors that influence the adsorption of a gas on a solid is/are:}$

Options:

1. $\text{Nature of the gas.}$
2. $\text{Surface area of the solid.}$
3. $\text{Effect of pressure.}$
4. $\text{All of the above.}$

Solution:

$\text{There are various factors that affect the rate of adsorption of a gas on a solid surface.}$ $\text{(1) Nature of the gas:}$ $\text{Easily liquefiable gases such as } \text{NH}_3, \text{HCl} \text{ etc. are adsorbed to a great extent in comparison to gases such as } \text{H}_2, \text{O}_2 \text{ etc. This is because Van der Waal's forces are stronger in easily liquefiable gases.}$ $\text{(2) Surface area of the solid:}$ $\text{The greater the surface area of the adsorbent, the greater is the adsorption of a gas on the solid surface.}$ $\text{(3) Effect of pressure:}$ $\text{Adsorption is a reversible process and is accompanied by a decrease in pressure. Therefore, adsorption increases with an increase in pressure.}$ $\text{(4) Effect of temperature:}$ $\text{Adsorption is an exothermic process. Thus, in accordance with Le-Chatelier's principle, the magnitude of adsorption decreases with an increase in temperature.}$

Import JSON File

Upload a JSON file containing LaTeX/MathJax formatted question, options, and solution.

Expected JSON Format:

{
  "question": "The mass of carbon present in 0.5 mole of $\\mathrm{K}_4[\\mathrm{Fe(CN)}_6]$ is:",
  "options": [
    {
      "id": 1,
      "text": "1.8 g"
    },
    {
      "id": 2,
      "text": "18 g"
    },
    {
      "id": 3,
      "text": "3.6 g"
    },
    {
      "id": 4,
      "text": "36 g"
    }
  ],
  "solution": "\\begin{align}\n&\\text{Hint: Mole concept}\\\\\n&1 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\text{ moles of carbon atom}\\\\\n&0.5 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\times 0.5 \\text{ mol} = 3 \\text{ mol}\\\\\n&1 \\text{ mol of carbon} = 12 \\text{ g}\\\\\n&3 \\text{ mol carbon} = 12 \\times 3 = 36 \\text{ g}\\\\\n&\\text{Hence, 36 g mass of carbon present in 0.5 mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6].\n\\end{align}",
  "correct_answer": 4
}