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Equilibrium

Question
CBSEENCH11008210
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The equilibrium constant for the reaction N2(g) + O2(g) ⇌ 2NO(g) at temperature T is 4×10-4. The value of Kc for the reaction NO(g) ⇌ 1/2N2(g) + 1/2O2(g) at the same temperature.

  • 2.5×102

  • 0.02

  • 4 x 10-4

  • 50

Solution

D.

50

straight N subscript 2 space left parenthesis straight g right parenthesis space space plus space straight O subscript 2 left parenthesis straight g right parenthesis space rightwards harpoon over leftwards harpoon with space space on top space 2 NO space left parenthesis straight g right parenthesis straight K subscript straight c space equals space fraction numerator left square bracket NO right square bracket squared over denominator left square bracket straight N subscript 2 right square bracket left square bracket straight O subscript 2 right square bracket end fraction space equals space 4 space straight x space 10 to the power of negative 4 end exponent NO space rightwards harpoon over leftwards harpoon with space on top space 1 half space straight N subscript 2 space left parenthesis straight g right parenthesis space space plus space 1 half space straight O subscript 2 space left parenthesis straight g right parenthesis space Kc to the power of apostrophe space equals space fraction numerator left square bracket straight N subscript 2 right square bracket to the power of 1 divided by 2 end exponent space left square bracket straight O subscript 2 right square bracket to the power of 1 divided by 2 end exponent over denominator left square bracket NO right square bracket end fraction space equals space square root of 1 over straight K subscript straight c end root space equals space square root of fraction numerator 1 over denominator 4 space straight x space 10 to the power of negative 4 end exponent end fraction end root space equals space 50

Some More Questions From Equilibrium Chapter

What is equilibrium?

Give two examples of physical equilibrium.

What kind of molecules in a liquid can evaporate?

Name the factors on which vapour pressure of any liquid depends.

Which measurable property becomes constant in water vapour equilibrium?

Give an example from daily life in which there is gas solution equilibrium?

A crystal of common salt of a given mass is kept in its aqueous solution. After 24 hours, its mass remains the same. Is the crystal in equilibrium with the solution?

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