CHEM 1000 Study Guide - Final Guide: Gas Thermometer, Nitride, Xylene
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12 Dec 2014
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A gas thermometer can be used to determine temperature by measuring the pressure of a known amount of gas held in a bulb: a 6. 00 l gas bulb contains 6. 40g of oxygen (o2) at 23. 6 c. A small piece of lithium was placed in a 1. 6l container of pure nitrogen at a pressure of 1150 torr and 25. 0 c. After all the lithium had reacted the pressure in the container was reduced to 956 torr. What mass of lithium nitride has been produced: at what temperature is the average speed of nitrogen molecule twice that of an argon atom at 300k. 2: a flask contains twice as many molecules of argon as xylene (c8h10). Gas is allowed to escape through a small orifice in the flask. After 100s, 0. 010 mole of argon has escaped. Assume this heat is lost by the evaporation of sweat (water).
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