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Lecture Problems

# Lecture Problems - 1 1.00 x 1026 atoms of an ideal gas are...

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1) 1.00 x 10 26 atoms of an ideal gas are placed in a container whose volume can be changed. a) How many moles of gas are in the container? b) What is the temperature of the gas? c) If the gas is composed of neon (atomic mass m = 3.35 x 10 -26 kg) what is the average speed of the neon atoms? Initially the gas has a volume of 3.00 m 3 and a pressure of 1.013 x 10 5 N/m 2 .

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1) (continued) 1.00 x 10 26 atoms of an ideal gas are placed in a container whose volume d) If the gas is composed of fluorine (which is diatomic, has strong intermolecular forces, and molecular mass m = 6.31 x 10 -26 kg ) describe the average speed of the fluorine molecules. e) What is the internal energy of the gas? can be changed. Initially the gas has a volume of 3.00 m 2 and a pressure of 1.013 x 10 5 N/m 2 .
1) (continued) 1.00 x 10 26 atoms of an ideal gas are placed in a container whose volume f) If the pressure stays constant but the volume doubles…. i. What is the final temperature of the gas? ii. What is the change in internal energy? iii. How much work does the gas do? iv. How much heat must have entered the gas? can be changed. Initially the gas has a volume of 3.00 m 2 and a pressure of 1.013 x 10 5 N/m 2 .

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1) (continued) 1.00 x 10 26 atoms of an ideal gas are placed in a container whose volume g) If the volume stays constant but the pressure doubles…. i. What is the final temperature of the gas? ii. What is the change in internal energy? iii. How much work does the gas do? iv. How much heat must have entered the gas? can be changed. Initially the gas has a volume of 3.00 m 2 and a pressure of 1.013 x 10 5 N/m 2 .
2) An ideal gas in a cylinder is compressed, heated, and then cooled so that its pressure and volume change over time as shown in the graph.

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