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Chemistry · EQUILIBRIUM

हिन्दी

Using the ideal gas relationship \( p = cRT \) where \( c = n/V \), what is the partial pressure of \( \text{NO}(\text{g}) \) at equilibrium in a vessel at \( 800\text{ K} \) where its equilibrium concentration is \( 2.8 \times 10^{-3}\text{ mol L}^{-1} \)? (Take \( R = 0.0831\text{ bar L mol}^{-1}\text{K}^{-1} \))

  1. 0.186 bar
  2. 0.066 bar
  3. 0.023 bar
  4. 0.280 bar

Correct answer · Option 1

0.186 bar

Explanation

\( p = cRT = (2.8 \times 10^{-3}\text{ mol L}^{-1}) \times (0.0831\text{ bar L mol}^{-1}\text{K}^{-1}) \times (800\text{ K}) = 2.8 \times 10^{-3} \times 66.48 \approx 0.186\text{ bar} \).
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