grahams gas law :: essays research papers

GAS LAWSKINETIC ENERGY/ GRAHAMS LAW LABPurposeTo observe how masses of atoms and molecules affect their compute of diffusion, and explain our observations in terms of mass, velocity, kinetic energy and temperature.Warm-up dubiousness1.     What is the definition of temperature?Temperature is a measure of the average Kinetic Energy of the particles musical composition a material.2.     What is the definition of diffusion?Diffusion is a spontaneous dispersal of particles until they are uniformly distributed in their container.3.     If we gain the temperature of sample of gas, then what near 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 neutral spirits (CH3CH2CH2OH). Why is this?Iodine is heavier in atomic mass then fermentation alcohol, lag down its process to d iffuse. Iodine weighs 253.6u while ethanol weighs 60.03u, giving ethanol a faster diffusions rate.Procedure A1.      receive a field sugarcoat tube and wash it with water. Dry the outside of the tube with a root towel. Next, squirt some acet unrivalled into the tube. A sm each amount is all that is needed. Then dry the inside of the tube by passing assembly line through the tube (use a fan, the window, blow through it, etc.)2.     Use starter to try one end of your lab station, "HC1," and the other end, "NH3."3.     Lay the glass tube on the table and domicile the thermometer on the table side by side(p) to the tube.4.     CATION THE NH3 AND THE HCI ARE IN VERY CONCENTRATED FORMS. DO NOT cater EITHER CHEMICAL TO COME INTO CONTACT WITH YOUR SKIN. IF THE NH3 OR HCl SPILLS, GET A DAMP PAPER TOWEL AND CLEAN IT UP IMMEDIATELY5.     Obtain 1 small bottle of HCI and 1 small bottle of NH3. mark each 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.      introduce the temperature of the air around the tube in the data table.7.     Separate the cotton plant ball into pieces small enough to stuff into the ends of the glass tube. Do non put 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.