7. Gases

A sample of gas occupies 1000 mL at a pressure of 15 atm. If the gas is compressed to a volume of 500 mL at constant temperature, what is the new pressure of the gas?

A 25.0 L sample of oxygen gas (O_2) is collected at 5.20 atm and 28.0 °C. Using the ideal gas law, how many grams of O_2 are present in the sample?

Which of the following is an example of an accurate manipulation of the ideal gas law?

How does the pressure of a real gas compare to the pressure of an ideal gas at low temperatures?

In an ideal gas law experiment, how is the temperature of the hydrogen gas typically determined?

Under which conditions of temperature and pressure would a real gas behave most like an ideal gas?

Which of the following is closest to the vapor pressure of propanone (acetone) at 45 °C?

Which of the following graphs best represents the relationship between pressure (P) and temperature (T) for a fixed volume of an ideal gas?

Under which of the following conditions does a sample of gas behave most ideally according to the ideal gas law?

When liquid water is converted to water vapor at constant mass, what happens to its volume and mass?

In the context of the Ideal Gas Law, why is it important to remove oil from a low-pressure system operating at 130 °F?

An ideal gas expands through an adiabatic process. Which of the following statements is true?

A balloon is inflated to 7.0 L of volume. How many moles of gas does it contain at standard temperature and pressure (STP)?

1.636 g of an unknown sulfur oxide gas, SO_x, is in a 0.5 L flask at 1 atm and 25.0 °C. Which is the most likely chemical formula of the compound?