grahams gas law :: essays research papers

GAS jurisprudenceSKINETIC ENERGY/ GRAHAMS LAW LABPurposeTo observe how masses of atoms and molecules affect their rate of diffusion, and explicate our observations in terms of mass, velocity, kinetic energy and temperature.Warm-up Question1.     What is the exposition of temperature?Temperature is a measure of the average Kinetic Energy of the particles composing a material.2.     What is the definition of diffusion?Diffusion is a spontaneous spreading of particles until they are uniformly distributed in their container.3.     If we increase the temperature of sample of gunslinger, then what about the gas molecules will have to change?The gas molecules would begin to increase in speed since the temperature would increase.4.     The element iodine (I2) diffuses more slowly than ethanol (CH3CH2CH2OH). wherefore is this?Iodine is heavier in atomic mass then ethanol, slowing worst its process to diffu se. Iodine weighs 253.6u while ethanol weighs 60.03u, giving ethanol a faster diffusions rate.Procedure A1.     Obtain a glass provide and wash it with water. Dry the outside of the subway system with a paper towel. Next, green some acetone into the tube. A small amount is all that is needed. and then dry the inside of the tube by passing transmit through with(predicate) the tube (use a fan, the window, blow through it, etc.)2.     Use chalk to mark off one end of your lab station, "HC1," and the different end, "NH3."3.     Lay the glass tube on the table and place the thermometer on the table next to the tube.4.     CATION THE NH3 AND THE HCI ar IN VERY CONCENTRATED FORMS. DO NOT ALLOW any CHEMICAL TO COME INTO CONTACT WITH YOUR SKIN. IF THE NH3 OR HCl SPILLS, GET A stop PAPER TOWEL AND CLEAN IT UP IMMEDIATELY5.     Obtain 1 small bottle of HCI and 1 small b ottle of NH3. Place separately bottle in their respective ends of the lab table. Obtain forceps, label them, "HC1" or NH3"with tape, and place them at their respective end of the lab table.6.     Record the temperature of the air around the tube in the data table.7.     Separate the cotton nut case into pieces small enough to stuff into the ends of the glass tube. Do not erect them into the tube yet. 8.     While holding the cotton ball with the forceps, place 4 drops of HCl or NH3 (whichever corresponds to the label on the forceps).9.     Repeat step 8 with the other chemical. You should now have two small cotton balls, one with 7 drops of HCI, one with 7 drops of NH3. Keep them at their respective ends of the lab station.