Dinitrogen tetraoxide and nitrogen dioxide are two gases that exist in equilibri

Question

Dinitrogen tetraoxide and nitrogen dioxide are two gases that exist in equilibrium at a range of temperatures NO_2 is a reddish brown gas while N_2 O_4 is colorless. If we represent the equilibrium as: N_2 O_4 (g) 2 NO_2 (g) We can conclude that This reaction is: A. Exothermic B. Endothermic C. Neutral D. More information is needed to answer this question. When the temperature is increased the equilibrium constant. K: A. Increases B. Decreases C. Remains the same D. More information is needed to answer this question. When the temperature is increased the equilibrium concentration of N_2 O_4: A. Increases B. Decreases C. Remains the same D. More information is needed to answer this question

Explanation / Answer

1)

At high temperature, red color is strong. So, NO2 is more at high temperature

NO2 is present on product side. so, reaction is shifting to product side as temperature increases.

For endothermic reaction, increasing temperature shift reaction to product side. So, this is endothermic

Answer: Endothermic

2)

On increasing temperature, concentration of product is increasing

Kc=[product]/[reactant]

So, Kc will increase

Answer: Increases

3)

On increasing temperature, concentration of product is increasing

Since N2O4 is reactant, concentration of N2O4 is decreasing

Answer: Decreases

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