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NEET 2011
Exam
NEET
Year
2011
Subject
Chemistry
Chapter
Chemical Equilibrium

NEET 2011 · Chemistry · Chemical Equilibrium

The value of Δ H for the raction X_2(g)+4 Y_2(g)^ 39 2 X Y_4(g) is...

The value of ΔH\Delta H for the raction X2(g)+4Y2(g)392XY4(g)X_2(g)+4 Y_2(g)^{39} 2 X Y_4(g) is less than zero. Formation of XY4(g)X Y_4(g) will be favoured at

Options

  1. Alow pressure and low temperature
  2. Bhigh temperature and low pressure
  3. Chigh pressure and low temperature
  4. Dhigh temperature and high pressure

Correct answer

C. high pressure and low temperature

Step-by-step solution

X2(g)+4Y2⇌2XY4(g)ΔH<0 and Δn<0\begin{aligned} & X_2(g)+4 Y_2 \rightleftharpoons 2 X Y_4(g) \\ & \Delta H < 0 \text{ and } \Delta n < 0 \end{aligned}∴\therefore The forward reaction is favoured at high pressure and low temperature. (According to co-chatelie's principle)
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