An unknown gas effuses at a rate of 2.00 times the rate of Cl₂. What is the molar mass of the unknown gas?

Q: White phosphorus melts and then vaporizes at high tempera-ture. The gas effuses at a rate that is…

A: The Scottish physical chemist Thomas Graham gives direct relation between rate of effusion of gas…

Q: In an experiment in a general chemistry laboratory, a student collected a sample of a gas over…

A: The ideal gas equation is given by,                                                PV = nRT Where, P…

Q: Methane gas, CH4, effuses through a barrier at a rate of 0.862 mL/minute. If an unknown gas effuses…

A:

Q: a sample of an unknown gas defuses at 17.42 min. an equal volume of hydrogen gas in the sam…

A: According to the Graham's law of Gaseous diffusion, the rate of diffusion of the gas is inversely…

Q: A gas of unknown molecular mass was allowed to effuse through a small opening under…

A: According to Graham's law of effusion: The rate of effusion is also inversely proportional to the…

Q: An unknown gas effuses at a rate 2.00 times the rate of SO₂. What is the molar mass of the unknown…

A: Given: The rate of effusion of unknown gas = 2.00 times the rate of effusion of SO2. Molar mass of…

Q: A gas made up of atoms escapes through a pinhole 1.82 times as fast as Xe gas. Write the chemical…

A: According to Graham's law of effusion rate, the rate of effusion of a gas is inversely proportional…

Q: A gas system has an initial volume of 5.23 L with the number of moles unknown. When the volume…

A: Given that : Initial volume (V1) = 5.23L Initial Number of moles (n1) =? Final volume (V2) = 8.53 L…

Q: An unknown gas effuses at a rate 1.50 times the rate of COCl₂. What is the molar mass of the unknown…

A: To solve this problem we will use the concept of Graham’s Law .

Q: In a particular gas mixture containing noble gases, there were 0.20 moles of Ne, 0.10 moles of He,…

A: The moles of gases as follows:Total pressure of the mixture = 800 mmHgThe partial pressure of the Ne…

Q: Gas Z was collected over water at 21°C on a day when atmospheric pressure was 757 torr. The volume…

A: The pressure in the collection tube is due to water vapor and the gas Z. Since, the total pressure…

Q: Calculate the molar mass of the unknown gas. (Remember that the faster the rate of effusion, the…

A:

Q: A sample of Helium gas is observed to effuse through a pourous barrier in 5.26 minutes. Under the…

A: Given, effusion time He gas =5.26 minuteseffusion time of unknown gas =17.1 minutesboth the gas has…

Q: White phosphorus melts and then vaporizes at high temperature. The gas effuses at a rate that is…

A: The number of atoms in molecule of white phosphorus has to be calculated.

Q: CO2 effuses 1.42 times more rapidly than the unknown gas. What is the molar mass of the unknown gas?

A:

Q: An unknown gas effuses at a rate 0.500 times the rate of CH4. What is the molar mass of the unknown…

A: According to Graham's law of effusion, the rate of effusion of a gas is inversely proportional to…

Q: An unknown gas effuses at a rate 0.667 times the rate of SiH. What is the molar mass of the unknown…

A: Let the rate of effusion of SiH4 be =rateSiH4 = x  Then, the rate of effusion of unknown gas…

Q: molecule of helium effuses with a RMS speed of 1579 m/s. At the same temperature, an unknown gas…

A:

Q: A gas whose molar mass you wish to know effuses through an opening at a rate half as fast as that of…

A: A gas whose molar mass you wish to know effuses through an opening at a rate half as fast as that of…

Q: The graph shows the molecular speed of four gases at 27 °C. What, if any, relationship is observed…

A:

Q: A gas of unknown molecular mass was allowed to effuse through a small opening under…

A: Effusion is the process of movement of gaseous molecules through a small hole. The rate of effusion…

Q: Chlorine pentafluoride gas is collected at 9.0°C in an evacuated flask with a measured volume of…

A: Given :-  pressure of gas = 0.410 atm  volume occupied by gas = 5.0 L  temperature = 9.0°C  To…

Q: A gas made up of atoms escapes through a pinhole 2.04 times as fast as Kr gas. Write the chemical…

A:

Q: A gas made up of atoms escapes through a pinhole 4.58 times as fast as Kr gas. Write the chemical…

A:

Q: gas, and the sketch below shows a representative sample of the mixture. The total pressure of the…

A: In this question given that total pressure is 850torr. And from given container we assume that moles…

Q: An unknown gas effuses at a rate 2.00 times the rate of Kr. What is the molar mass of the unknown…

A: The objective of this question is to find the molar mass of an unknown gas given that it effuses at…

Q: Choose a depiction of a gas sample containing equal molar amounts of argon and xenon as described by…

A: The relation between velocity and the molar mass of a gas is given in equation (1).

Q: An unknown gas X effuses 1.39 times faster than C4H10. What is the molecular mass of gas X (in g…

A:

Q: 0.9110 grams of an unknown gas was placed into an evacuated 0.500 L container. The temperature was…

A: The ideal gas equation is  PV = nRT  PV = (m/M)RT P = pressure  V = volume  n = moles of gas = mass…

Q: Part A- Applying the Kinetic-Molecular Theory Consider two gas cylinders of the same volume and…

A: The statement' The C3H8 and CH4 molecules have the same average kinetic energy' is correct.

Q: What is the molar mass of the uranium fluoride?

A:

Q: and gas B has a molar mass of 24.28 g. If each gas is introduced at the opposite end of a 1.5 m…

A: Graham's law of diffusion states that the rate of diffusion of a gas is inversely proportional to…

Q: A sample of SO2 gas is observed to effuse through a pourous barrier in 3.70 minutes. Under the same…

A: Given- Rate of effusion of SO2 gas = 3.70 min Rate of effusion of unknown gas = 1.66 min   To find-…

Q: A hydrogen gas effuses at a rate of 6.2 mL/s. Calculate the molar mass of the unknown gas, which…

A: Given, Rate of effusion of hydrogen gas = 6.2mL/s. Rate of effusion of unknown gas = 0.61mL/s.

Q: An unknown gas effuses at a rate 0.500 times the rate of CH4. What is the molar mass of the unknown…

A:

Q: Helium gas escapes from a bicycle tire valve at a rate of 3.6 mole/min. Under the same pressure and…

A: Graham's Law Rate of diffusion is inversely proportional to the sqrt of molar mass of the…

Q: An unknown gas effuses at a rate 1.50 times the rate of COCI2. What is the molar mass of the unknown…

A:

Q: At 1.01 atm and 5.66 ∘C a 2.51 g sample of gas occupies a volume of 2430 mL. Calculate the molar…

A: Given,  pressure = 1.01 atm Volume = 2430 ml = 2.43 L  Mass of gas = 2.51 g Temperature = 56.6°C =…

Q: A sample of unknown gas effuses in 74.1 minutes. An equal volume of argon in the same apparatus at…

A:

Q: A sample of an unknown gas effuses in 11.8 min. An equal volume of H2 in the same apparatus at the…

A: Given    Time of effusion of unknown gas X ( t1  ) =  11.8 min   Time of effusion of H2 ( t2 )  =…

Kinetic-Theory of Gases

Kinetic theory of gases is the model or method which was developed in the 19th century by Maxwell and Boltzmann. This is possible as the interatomic force which is of short-range forces that are important for solids and liquids can be neglected for gases. This theory or gas law gives a molecular interpretation of the pressure and temperature of a gas and is consistent with gas laws and Avogadro’s hypothesis. This theory is very helpful to correctly explain the specific heat capacities of many gases, kinetic energy and it also explains the transport qualities such as viscosity, thermal conductivity, and diffusion with molecular parameters. As stated in the kinetic-molecular theory, the temperature of a substance or gas particle is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles, called average kinetic energy.