7. Gases

When a balloon filled with air is placed into a freezer, which of the following best describes what will happen to the balloon?

Which of the following properties of gases can be directly measured in a laboratory setting?

Which generalization can be made about the relationship between the temperature and volume of a gas, assuming pressure and amount of gas are constant?

Which of the following processes releases carbon dioxide into the atmosphere during gas evolution reactions?

In a gas stoichiometry experiment, a graph shows the volume of O_2 (in liters) on the left y-axis and the volume of CO_2 (in liters) on the right y-axis as a function of time. Which gas is plotted using the y-axis on the right?

A gas sample contains 4.0 g of CH_4 and 2.0 g of He. What is the total volume of the sample at STP (0°C, 1 atm)?

At STP, what volume of argon gas is occupied by 1.60 grams of argon?

In the context of gas stoichiometry, which variable is held constant in Charles's Law?

Which of the following is an example of gas diffusion?

A sample of NO_2 occupies 16.0 L at STP. How many moles of NO_2 are present in the sample?

In the context of gas stoichiometry, to pull a vacuum means to ____.

Which of the following best describes the relationship between the volume of a gas and the number of moles at constant temperature and pressure?

Which apparatus allows a scientist to measure the volume of gas released during a reaction?

Which of the following is NOT true about the volume of a gas under standard conditions?

Which process helps remove carbon dioxide from the atmosphere, demonstrating the Law of Conservation of Mass?