36 Questions
What is the standard temperature at STP?
0°C
What is the value of the standard molar volume in liters?
22.4141 L
What is the relationship between the volume and pressure of an ideal gas at constant temperature?
Inversely proportional
What is the value of the universal gas constant R in SI units?
8.31447 J/mol·K
What is the condition for the ideal gas law to be applicable?
Low pressure and high temperature
What is the correct unit for the volume of a gas in the ideal gas law?
L
What is the relationship between the pressure exerted by a fixed amount of gas and its absolute temperature at constant volume?
Directly proportional
What is the effect of a decrease in temperature on the pressure of an ideal gas at constant volume?
Pressure decreases
What is the relationship between the volume occupied by a gas and the amount of gas at fixed temperature and pressure?
Directly proportional
What is the effect of an increase in temperature on the pressure of an ideal gas at constant volume?
Pressure increases
What is the value of the constant in the Combined Gas Law dependent on?
The amount of gas in the experiment
What is the statement that is true about equal volumes of any ideal gas at fixed temperature and pressure?
They contain equal numbers of particles
What does Boyle's Law state?
Volume is inversely proportional to the external pressure.
What happens to the pressure as the volume of a gas increases at constant temperature, according to Boyle's Law?
Pressure decreases.
In the ideal gas equation PV = nRT, what does 'n' represent?
Moles of gas
What changes the value of the constant in Boyle's Law?
Temperature and amount of gas
What does the slope of the linear function in Charles's Law represent?
Temperature changes
According to Charles's Law, what happens to the volume as the temperature of a gas decreases at a constant pressure?
Volume decreases.
What is the amount of moles of CO2 in the reaction 2LiOH(s) + CO2(g) → Li2CO3(s) + H2O(l), given 395g of LiOH?
8.25 mol
In the reaction Cl2(g) + 2K(s) → 2KCl(s), what is the amount of moles of Cl2 gas, given 5.25 L of chlorine gas at 0.950 atm and 293 K?
0.207 mol
What is the pressure of the CO2 gas in the reaction 2LiOH(s) + CO2(g) → Li2CO3(s) + H2O(l), given 395g of LiOH and a temperature of 23°C?
0.942 atm
What is the volume of the CO2 gas in the reaction 2LiOH(s) + CO2(g) → Li2CO3(s) + H2O(l), given 395g of LiOH and a temperature of 23°C?
213 L
What is the limiting reactant in the reaction Cl2(g) + 2K(s) → 2KCl(s), given 5.25 L of chlorine gas at 0.950 atm and 293 K and 17.0 g of potassium?
Both Cl2 and K
What is the mass of potassium chloride that forms when 5.25 L of chlorine gas at 0.950 atm and 293 K reacts with 17.0 g of potassium?
25.5 g
At what temperature does a steel tank, filled with 0.885 kg of O2 in 438 L, have a pressure of 1.53 atm?
294 K
Which gas law should be applied to determine the pressure of O2 in the steel tank filled with 0.885 kg of O2?
Ideal Gas Law
In Sample Problem 5.7, what happens to the temperature as the gaseous reaction occurs?
It increases
What is the pressure after the gaseous reaction in Sample Problem 5.7 depicted at constant pressure?
2.06 atm
What is the pressure calculated by applying the Ideal Gas Law for the reaction analyzed in Sample Problem 5.7?
2.06 atm
Which gas variable is determined when solving for the pressure of O2 in the steel tank filled with 0.885 kg of O2?
Volume
Which of the following is a characteristic of gases that distinguishes them from liquids and solids?
Their volume changes significantly with pressure and temperature.
What is the significance of the average speed of gas molecules or atoms at room temperature?
It is a measure of the kinetic energy of the molecules.
Which of the following is an example of the flow of gases?
Gas leaking from a container.
How do the densities of gases compare to those of liquids and solids?
They are 1000 times less.
What is a characteristic of the mixing of gases?
They mix in any proportions.
Which of the following is a consequence of the significant volume changes of gases with temperature?
They are useful for lifting and popping.
Test your understanding of Boyle's Law, which states that at constant temperature, the volume occupied by a fixed amount of gas is inversely proportional to the external pressure. Explore how pressure and volume change under different conditions.
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