Import Question JSON

Current Question (ID: 21098)

Question:

$\text{In which one of the following equilibria, } K_p \neq K_c?$

Options:

1. $2\text{NO}(g) \rightleftharpoons \text{N}_2(g) + \text{O}_2(g)$
2. $2\text{C}(s) + \text{O}_2(g) \rightleftharpoons 2\text{CO}(g)$
3. $2\text{HI}(g) \rightleftharpoons \text{H}_2(g) + \text{I}_2(g)$
4. $\text{NO}_2(g) + \text{SO}_2(g) \rightleftharpoons \text{NO}(g) + \text{SO}_3(g)$

Solution:

$\text{Hint: Use the relation between } K_p \text{ and } K_c$ $\text{The relation between } K_p \text{ and } K_c \text{ is as follows:}$ $K_p = K_c (RT)^{\Delta n_g}$ $\text{If } \Delta n_g \text{ value is 0 then } (RT)^{\Delta n_g} \text{ became one and } K_p \text{ is equal to } K_c \text{ or vice versa.}$ $\text{For the second reaction, } \Delta n_g \text{ is not zero, it is } -1. \text{ Hence, } K_p \text{ is not equal to } K_c.$

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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
}