7. Gases

When the pressure in a beaker containing an ideal gas is lowered at constant temperature, what happens to the volume of the gas according to the ideal gas law?

Which of the following best explains why the pressure of a fixed amount of gas decreases as altitude increases in Earth's atmosphere, assuming temperature remains constant?

At a constant temperature and amount of gas, which of the following relationships between pressure and volume is described by the ideal gas law?

At what temperature (in K) would 2.10 moles of N_2 gas exert a pressure of 1.25 atm in a 25.0 L tank? (Use R = 0.0821 L·atm·mol^{-1}·K^{-1})

Using the ideal gas law, what is the volume (in liters) occupied by 2.5 moles of nitrogen gas at a pressure of 1.75 atm and a temperature of 475 K? (Use R = 0.0821 L·atm·mol^{-1}·K^{-1})

A gas expands from state i to state f in the figure, with the pressure remaining constant. Which equation best describes the relationship between the initial and final volumes and temperatures according to the ideal gas law?

What is the volume of 0.200 mol of an ideal gas at 200. kPa and 400. K? Use the ideal gas law and R = 8.314 L·kPa·mol^{-1}·K^{-1}.

In an ideal gas law experiment, a student collects 0.50 mol of a gas in a 10.0 L container at 300 K. What is the pressure of the gas in atmospheres? (Use R = 0.0821 L·atm·mol^{-1}·K^{-1})

A sample of nitrogen gas occupies 2.50 L at 300 K and 1.00 atm. If the gas is completely vaporized from liquid nitrogen at its boiling point (77 K), and the pressure remains constant, which of the following equations would you use to determine the heat of vaporization (ΔH_vap) of nitrogen using the Ideal Gas Law and the given data?

Under which of the following conditions would a gas that typically behaves non-ideally be made to act more like an ideal gas?

Which of the following gases will absorb in the IR spectrum?

If both the pressure and volume of an ideal gas are increased, what will happen to the temperature, assuming the amount of gas remains constant?

What is the volume, in liters, of 15 moles of CO_2 gas at 50 °C and 800 torr? (Use R = 0.0821 L·atm·mol^{-1}·K^{-1})

Under which conditions do real gases behave most like ideal gases?

Which of the following gases behaves most like an ideal gas under standard conditions?