How does temperature affect the kinetic energy of gas molecules? When can a real

Question

How does temperature affect the kinetic energy of gas molecules? When can a real gas behave as an ideal gas? Are these conditions met in this experiment? What happens to a real gas (e.g., nitrogen gas) as it cools from room temperature to 0 K, absolute zero? Would you expect it to "disappear" when it reached absolute zero? Explain your answer. A sample of neon gas occupies 75.0 mL at 25 degree C. What is its new volume, in milliliters, if the temperature decrease to -12 degree C, with P and n constant? A 23.6 g gas sample occupies a l0.0-L flask at 27 degree C and 780. torr of pressure. Calculate the molar mass of the gas

Explanation / Answer

1.Average kinetic energy of molecules depends on temperature,however all the molecules do not travel at same speed,so even at one temperature ,some molecules move slowly ,some moves fastly,here knetic energy directly proportional to absolute temperature. 2.at high temperature and low pressure,as the potential energy becomes less. As real gas it's cools it does not behave as ideal. V1/T1 = V2/T2,. 0.075 /298 = V2/261,. V2 = 0.0656 lit. 5) M = wRT/PV = 23.6*0.0821 * 300/(1.0296 * 10) = 56.45 g/mole.

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