• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Representative Gases & Properties of Gases - State the five assumptions of the Kinetic-Molecular Theory of gases.

Extracts from this document...

Introduction

Representative Gases & Properties of Gases 1. State the five assumptions of the Kinetic-Molecular Theory of gases. a) Gases consist of large numbers of tiny particles. These particles, usually molecules or atoms, typically occupy a volume about 1000 times larger than occupied by the same number of particles in the liquid or solid state. Thus molecules of gases are much further apart than those of liquids or solids. Most of the volume occupied by a gas is empty space. This accounts for the lower density of gases compared to liquids and solids, and the fact that gases are easily compressible. b) The particles of a gas are in constant motion, moving rapidly in straight lines in all directions, and thus passes kinetic energy. The kinetic energy of particles overcomes the attractive forces between them except near the temperature at which the gas condenses and becomes a liquid. Gas particles travel in random directions at high speeds. c) The collisions between particles of a gas and between particles and container walls are elastic collisions. An elastic collision is one in which there is no net loss of kinetic energy. ...read more.

Middle

The spontaneous mixing of the particles of two substances because of their random motion is referred to as diffusion. f) Exertion Gases also have the ability to exert pressure on a surface. 3. Methods of production of the representative gases. 1) Balanced equations required: a) Oxygen (2 methods): One method of preparation is decomposing hydrogen peroxide. Oxygen can be prepared by passing hydrogen peroxide through a catalyst, manganese dioxide. It is then collected by water displacement. The second method is decomposing water through electrolysis. Electricity is passes though water, separating Hydrogen and Oxygen. Method 1: 2H2O2(aq) -MnO2� 2H2O(l) + O2(g). Method 2: 2H2O(l) -electrical energy� 2H2(g) + O2(g). b) Ozone (1 method): If enough energy is present, O2 will become O3. Method: 3O2(g) + energy � 2O3(g). c) Hydrogen (2 methods): One of the methods of preparing Hydrogen is just like preparing Oxygen, through the use of electrolysis. Method 1: Method 2: 2H2O(l) -electrical energy� 2H2(g) + O2(g). Another commonly used method is reacting metals with acids. Method 2: Zn(s) + H2SO4(aq) � ZnSO4(aq) + H2(g). d) Ammonia (1 method): The Haber Process is the catalytic systhesis of ammonia from nitrogen gas and hydrogen gas. ...read more.

Conclusion

If Oxygen was in a test tube and you placed a buring splint up to it, it should suck the flame in and make a "pop" sound. Or it would re-ignite a glowing splint. oOnly Oxygen and Ozone have color in their liquid and solid states. oOnly Carbon Dioxide, Ozone, and Ammonia have odor. The most difficult gas to identigy would be Hydrogen. 7. Define allotrope Allotrope - One of the two or more forms of an element that exists in the same physical state. 8. What is a eudiometer? Eudiometer - A eudiometer is a gas collecting tube. 9. What kinds of attractive forces exists between molecules? Describe all three. How are these attractive forces different from those we stuidied previously? Intermolecular forces - The forces of attraction between molecules. Dipole-dipole forces - The forces of attraction between polar molecules. London dispersion forces - Intermolecular attractions resulting from the constant motion of electrons and the creation of intantaneous dipoles and induced dipoles. 10. What is an ideal gas? When does a real gas behave like an ideal gas? An ideal gas is a gas that fits the kinetic molecular theory perfectly. Noble gases tend to behave like an ideal gas. Real gases behave like an ideal gas when it fits the 5 assumptions of KMT. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level War Poetry section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level War Poetry essays

  1. Determination of the Value of the Gas Constant and the Molar Volume of Oxygen ...

    Rearranging the Ideal Gas Equation; p.V = n.R.T p.V = (m/M).R.T R =[p.V.M]/[m.T] Now substitute in known values to solve for "R" R =[(101300 N.m-1)(8.9x10-5 m3)(32.00 g.mol-1)]/[(0.108 g)(294.5 K)] R = 9.07 J.K-1.mol-1 So an empirically determined gas constant has been found, though it deviates from the literature value by

  2. The Haber Process.

    of porous iron, and slight extractions of other elements (http://www.chemguide.co.uk/physical/equilibria/haber.html). The form of Ammonia materialising into gas also occurred by Fritz Haber during World War I. When the allies had blocked trades with Germany, they blocked off imports of Potassium Nitrate and Sodium Nitrate along with it.

  1. I need to produce a marketing strategy for a new or existing product. I ...

    British gas is a new player in the European gas market through the opening of a new pipeline with connects the UK to the Continent. The Interconnector pipeline was completed in October 1998 and since then it has been supplying gas direct to three major industrial customers in Germany and the Netherlands.

  2. The Haber Process

    The Haber Process for the production of ammonia (NH3) gas from its two elements, nitrogen (N2) and Hydrogen (H2) is discussed in almost every high school chemistry lesson as a good example chemical equilibrium. The reaction between nitrogen and hydrogen to produce ammonia had been known for many years, the productions were very small and the reactions were very slow.

  1. The Haber Process

    It is also an base so it neutralizes acids and when it does it forms ammonium salts because a Acid + Base--- Salt + Water. With sulpharic acid it gives ammonium sulphate (NH4)2SO4 and with hydrochloric acid it gives ammonium chloride which is NH4Cl.

  2. Right equation

    1 mole is 24000cm� then 1/24000 is 1cm� The compound copper carbonate, CuCO3 decomposes on heating to form one of these oxides and two equations provided for possible reaction are: Expressing equation (1) chemical reaction in terms of 1 mole we get: CuCO3 (s)

  1. Representative Gases & Properties of Gases

    The kinetic energy of a particle (or any other moving object) is given by the equation: KE = 1/2mv2. Where m is the mass of the particle and v is the velocity. 2. List the five properties of gases (add the extra one too!)

  2. Discussing the motion:

    What's done is done, and no matter how amazing it was that those men put their lives on the line, it is long over. Well what about the people who do appreciate the silence you say? Well who does? There are so few people still alive after the war, and

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work