Thermodynamics
Which of the following statements is a fundamental assumption of the ideal gas model?
Gas particles have significant volume compared to the container volume.
Gas particles experience strong intermolecular forces.
Collisions between gas particles are perfectly elastic.
Gas particles move in a predictable, ordered manner.
Under which of the following conditions would a real gas deviate most significantly from ideal behavior?
Low pressure and high temperature
High pressure and high temperature
Low pressure and low temperature
High pressure and low temperature
A gas is held at a very high pressure and low temperature. Evaluate the validity of using the ideal gas law to model this gas.
The ideal gas law is valid because the gas will always behave ideally regardless of conditions.
The ideal gas law is valid because the high pressure will cause the volume to increase.
The ideal gas law is not valid because at high pressure and low temperature, intermolecular forces become significant.
The ideal gas law is not valid because at high pressure and low temperature, the volume of the particles becomes negligible.
A container holds 5 moles of an ideal gas at a temperature of 300 K. If the volume of the container is 0.1 , what is the pressure of the gas?
1.247 × 10^5 Pa
1.38 × 10^-23 Pa
1.5 × 10^5 Pa
- 6.022 × 10^23 Pa
A gas occupies a volume of 10.0 L at 27°C. If the temperature is increased to 227°C, what is the new volume, assuming the pressure remains constant?
6.67 L
16.67 L
10 L
20 L
A container holds two gases: 2 moles of oxygen and 3 moles of nitrogen. If the total pressure in the container is 2 atm, what is the partial pressure of oxygen?
0.4 atm
0.6 atm
0.8 atm
1.2 atm
According to Boyle's Law, if the pressure on a gas is doubled while keeping the temperature constant, what happens to the volume?
The volume doubles.
The volume is halved.
The volume remains constant.
The volume quadruples.

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A gas occupies a volume of 5.0 L at a pressure of 2.0 atm. If the pressure is increased to 4.0 atm while keeping the temperature constant, what is the new volume?
2.5 L
5.0 L
7.5 L
10.0 L
A gas undergoes isothermal compression. Which of the following statements is true regarding the work done?
The work done by the gas is positive.
The work done by the gas is negative.
The work done by the gas is zero.
The work done on the gas is zero.
According to Charles's Law, if the temperature of a gas increases while keeping the pressure constant, what happens to the volume?
The volume decreases.
The volume increases.
The volume remains constant.
The volume is halved.