chemistry

Much of the brown haze hanging over large cities is nitrogen dioxide, NO2(g). Nitrogen dioxide reacts to form dinitrogen tetroxide, N2O4(g), according to the equilibrium.

2NO2(g) N2O4(g) + 57.2 kJ

(brown) (coulorless)

Use this equilibrium to explain why the brownish haze over a large city dissapears in the winter , only to reappear again in the spring.(Assume that the atmosphere over a city constitutes a closed system.)

  1. 👍
  2. 👎
  3. 👁
  1. The following reaction is used in the commercial production of hydrogen gas.

    CH4(g) + 2H2O(g) CO2(g) + 4H2(g)

    a) In a closed system how would a catalyst affect the establishment of equilibrium in the system?
    b) How would the concentration of H2(g) at equilibrium be affected by the use of a Ni(s) catalyst?

    1. 👍
    2. 👎
  2. It's tough to follow when you post a question as a piggy back to another question. Most of the times they get lost in the shuffle. Please post a new question for new questions.

    1. 👍
    2. 👎
  3. 2NO2(g) N2O4(g) + 57.2 kJ
    Adding heat, as in the summer, will push the equilibrium to the left forming more NO2 and more color. (N2O4 is colorless). The winter takes away heat and the equilibrium shifts to the right.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. science

    1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? (1 point) nitrogen-fixing bacteria denitrifying bacteria decomposers producers 2. Which step in the nitrogen

  2. Chemistry

    Deduce the number of nitrogen atoms in: 5.00 x 10^-3 mol of ammonia, NH3 and 4.601 g of nitrogen dioxide, NO2

  3. Chemistry

    The reaction between nitric oxide (NO) and oxygen to form nitrogen dioxide (NO2) is a key step in photochemical smog formation. 2 NO(g) + O2(g) 2 NO2(g) (a) How many moles of NO2 are formed by the complete reaction of 0.404 mole

  4. Chemistry

    Write a balanced chemical equation for nitrogen gas reacts with oxygen gas to produce nitrogen dioxide gas

  1. Chemistry Balancing Equations

    Can you please tell me if these are correct? 1. Sodium Hydrogen Sulfite reacts with hydrochloric acid to produce sulfur dioxide gas, water and sodium chloride NaHSO3 + HCl -----> SO2 + H2O + NaCl 2. Sodium nitrate reacts with

  2. Chemistry

    give the balanced equation for: Liquid nitric acid decomposes to reddish brown nitrogen dioxide gas, liquid water, and oxygen gas. the equation i got was HNO3 --> NO2+ H2O+ O2 is that right? i haven't balanced it yet

  3. chemistry

    In the reaction O2+2NO->2NO2 what is the ratio of oxygen reacted to nitrogen dioxide produced? Nitrogen monoxide to nitrogen dioxide? We had to calculate the concentration of each, for which I have O2=-1.01x10^-5, NO=-2.03x10^-5

  4. AP chemistry

    The mechanism for the reaction of nitrogen dioxide with carbon monoxide to form nitric oxide and carbon dioxide is thought to be NO2+NO2 > NO3+NO slow NO3+CO > NO2+CO2 fast Write the rate law expected for this mechanism. What is

  1. chemistry

    Copper(II) nitrate decomposes upon heating to form copper(II) oxide, nitrogen dioxide gas, and oxygen gas. If 1.0 mole of copper(II) nitrate decomposes, how many moles of nitrogen dioxide would be formed?

  2. Chemistry

    Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3 NO2 (g)+ H2O (l) --> 2HNO3 (l) + NO (g) Suppose that 5 mol NO2 and 1 mol H2O combine and react completely. How many moles of

  3. Science

    What are the two gases that animals exchange with their surroundings? A)oxygen and nitrogen B)nitrogen and helium C)hydrogen and carbon dioxide D)carbon dioxide and oxygen Someone please help!!!

  4. Chemistry

    Nitrogen dioxide decomposes on heating according to the following equation 2NO2 (g) ↔ 2NO (g) + O2 (g) When 4 mole of nitrogen dioxide were put into a 1dm3 container and heated to a constant temperature, the equilibrium mixture

You can view more similar questions or ask a new question.