Multiple Choice
Using the ideal gas law, what is the pressure (in atm) of 1.9 mol of nitrogen gas in a 9.45 L tank at a temperature of 228 K? (Use R = 0.0821 L·atm·mol^{-1}·K^{-1})
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7. Gases
The Ideal Gas Law
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
A real gas will behave most like an ideal gas under conditions of ________.
A
low temperature and high pressure
B
low temperature and low pressure
C
high temperature and low pressure
D
high temperature and high pressure
Verified step by step guidance1
Recall that ideal gas behavior assumes negligible intermolecular forces and that gas particles occupy no volume.
Understand that at high temperatures, gas particles have more kinetic energy, which overcomes intermolecular attractions, making the gas behave more ideally.
Recognize that at low pressures, gas particles are far apart, reducing interactions and the effect of their finite volume, which also favors ideal behavior.
Combine these insights to conclude that gases behave most like ideal gases at high temperature and low pressure.
Therefore, the correct condition for a real gas to behave most like an ideal gas is high temperature and low pressure.
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