Under what conditions of temperature and pressure is the behavior of real gases most like that of ideal gases?
Answer: low temperature and high pressure
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Chemistry Chapter 14
- The tendency of molecules to move toward areas of lower concentration is called ____.
- A breathing mixture used by deep-sea divers contains helium, oxygen, and carbon dioxide. What is the partial pressure of oxygen at 101.4 kPa if PHe = 82.5 kPa and PCO2 = 0.4 kPa?
- If a balloon containing 3000 L of gas at 39°C and 99 kPa rises to an altitude where the pressure is 45.5 kPa and the temperature is 16°C, the volume of the balloon under these new conditions would be calculated using the following conversion factor ratios: ____.
- A sample of gas occupies 17 mL at -112°C. What volume does the sample occupy at 70°C?
- A gas occupies a volume of 2.4 L at 14.1 kPa. What volume will the gas occupy at 84.6 kPa?
- As the temperature of a fixed volume of a gas increases, the pressure will ____.
- Which of the following gases is the best choice for inflating a balloon that must remain inflated for a long period of time?
- Which of the following gases will effuse the most rapidly?
- If the volume of a container of air is reduced by one-half, what happens to the partial pressure of oxygen within the container?
- What happens to the partial pressure of oxygen in a sample of air if the temperature is increased?
- Which of the following is constant for 1 mole of any ideal gas?
- Which law can be used to calculate the number of moles of a contained gas?
- At a certain temperature and pressure, 0.20 mol of carbon dioxide has a volume of 3.1 L. A 3.1-L sample of hydrogen at the same temperature and pressure ____.
- What does the ideal gas law allow a scientist to calculate that the other gas laws do not?
- The combined gas law relates which of the following?
- What happens when a piston is used to decrease the volume of a contained gas?
- When the volume and number of particles of a gas are constant, which of the following is also constant?
- If a balloon is heated, what happens to the pressure of the air inside the balloon if the volume remains constant?
- If a balloon is heated, what happens to the volume of the air in the balloon if the pressure is constant?
- When the temperature and number of particles of a gas are constant, which of the following is also constant?
- The volume of a gas is doubled while the temperature is held constant. How does the gas pressure change?
- When the Kelvin temperature of an enclosed gas doubles, the particles of the gas ____.
- Which of these changes would NOT cause an increase in the pressure of a contained gas?
- Why does air escape from a tire when the tire valve is opened?