A 1.46 mol sample of CO2 gas is confined in a 34.0 liter container at 10.7 °C. If the amount of gas is increased to 2.19 mol, holding the volume and temperature constant, the pressure will increase because: Choose all that apply. With higher average speeds, on average the molecules hit the walls of the container with more force. As the number of molecule-wall collisions increases, the force per collision decreases. With more molecules per unit volume, the molecules hit the walls of the container more often. With more molecules in the container, the molecules have higher average speeds. None of the Above Submit Answer Try Another Version 1 item attempt remaining

A glass container was initially charged with 1.80 moles of a gas sample at 4.25 atm and 21.7 °C. Some of the gas was released as the temperature was increased to 30.1 °C, so the final pressure in the container was reduced to 1.25 atm. How many moles of the gas sample are present at the end?

ASK YOUR TEACHER   A gas of unknown molar mass was allowed to effuse through a small opening under constant pressure conditions. It required 3650 s for 1.00 L of this gas to effuse. Under identical experimental conditions it required 471 s for 1.00 L of hydrogen (H2) gas to effuse. Calculate the molar mass of the unknown gas . (Remember that the faster the rate of effusion, the shorter the time required for effusion; that is, rate and time are inversely proportional.) a) The molar mass is 0.3 g/mol.b) The molar mass is 15.6 g/mol.c) The molar mass is 0.7 g/mol.d) The molar mass is 121.1 g/mol.e) The molar mass is 5.6 g/mol.

When 4.4 grams of NH4NO3 is decomposed in a closed container, it will produce N2, O2 and water vapor and release a lot of heat. The temperature can be higher than 3000C. If the total pressure in the container is 86.2 atm, what is the partial pressure of N2? NH4NO3(s) --> N2(g) + 1/2 O2 (g) + 2H2O(g)

PETA is also an explosive, but not as famous as TNT. Upon detonation, PETN will decompose to form different gases as shown in the following chemical equation. If 2.48 grams of PETN is detonated in a steel container, after the gases go back to room temperature (25 degrees celcius). The pressure inside the container is 28.4 atm, please estimate the total pressure immediately after explosion if the temperature was 500 degrees celcius. [Hint: the gases at 25 degrees celcius and 500 degrees celcius are different!] C(CH2ONO2)4(s) --> 2CO(g) + 4H2O(g) + 2N2(g) + 3CO2(g)

A mixture of nitrogen and xenon gases is maintained in a 8.89 L flask at a temperature of 43°C. If the partial pressure of nitrogen is 0.426 atm and the partial pressure of xenon is 0.283 atm, the total pressure in the flask is atm.