Exam 10: Gases: Their Properties and Behavior

Some assumptions from the kinetic molecular theory are listed below.Which one is most frequently cited to explain Charles' law?

The burning of sulfur-containing coal can lead the formation of ________ which is emitted into the atmosphere.

The pressure in a container of gas connected to an open-end mercury manometer in which the mercury level is 22 cm lower in the side open to the atmosphere and the atmospheric pressure is 734 mm Hg is ________ mm Hg.

A container filled with gas is connected to an open-end manometer that is filled with mineral oil.The pressure in the gas container is 763 mm Hg and atmospheric pressure is 734 mm.How high will the level rise in the manometer if the densities of Hg and mineral oil are 13.6 g/mL and 0.822 g/mL respectively?

One reaction that contributes to photochemical smog is shown below.Which of the species involved contains one or more unpaired electrons? NO₂(g)+ hυ →NO(g)+ O(g)

In the diagram below,helium atoms are represented by unshaded spheres,neon atoms by gray spheres,and argon atoms by black spheres. -If the total pressure in the container is 900 mm Hg,what is the partial pressure of argon?

When using the ideal gas law the temperature must be expressed in ________.

At STP if 1.00 mole of gas occupies 22.4 L then 0.200 mole of gas would occupy ________ L under the same conditions.

What is the temperature of SO₂ gas if the average speed (actually the root-mean-square speed)of the molecules is 750 m/s?

A 2.000 kg sample of nitroglycerine,C₃H₅N₃O₉,explodes and releases gases with a temperature of 1985°C at 1.000 atm.What is the volume of gas produced? 4 C₃H₅N₃O₉(l)→ 12 CO₂(g)+ 10 H₂O(g)+ 6 N₂(g)+ O₂(g)

A glass tube has one end in a dish of mercury and the other end closed by a stopcock.The distance from the surface of the mercury to the bottom of the stopcock is 800 mm,as indicated by the meter stick shown in the drawing below.The apparatus is at 20°C,and the mercury level in the tube is the same as that in the dish. -Which drawing best shows the approximate level of the mercury in the tube when a vacuum pump is connected to the top of the tube,the stopcock opened,the tube is evacuated,the stopcock is closed,and the pump is removed,and the stopcock is reopened?

At STP the number of liters of O₂ required to react with 11.2 liters of CH₄ to form only CO₂ and H₂O is ________ liters.

Under the same pressure and temperature conditions,the level of water inside a barometer will be ________ than the level of mercury inside the barometer by a factor equal to the ratio of the density of ________ over the density of ________.

A 5.00-L flask contains nitrogen gas at 25°C and 1.00 atm pressure.What is the final pressure in the flask if an additional 2.00 g of N₂ gas is added to the flask and the flask cooled to -55°C?

In the diagram below,helium atoms are represented by unshaded spheres,neon atoms by gray spheres,and argon atoms by black spheres. -If the total pressure in the container is 900 mm Hg,what is the partial pressure of helium?

Historical records of greenhouse gases can be found in

Assume that you have a sample of gas in a cylinder with a moveable piston,as shown in diagram (1).The initial pressure,number of moles,and temperature of the gas are noted on the diagram. -Which diagram (2)-(4)most closely represents the result of doubling the pressure while keeping the temperature and number of moles of gas constant?

What is the volume of 20.0 g of argon gas at 157°C and 2.50 kPa pressure?

Which one of the following gases will have the lowest rate of effusion?

In the diagram below,helium atoms are represented by unshaded spheres,neon atoms by gray spheres,and argon atoms by black spheres. -If the total pressure in the container is 900 mm Hg,what is the partial pressure of neon?