(a) (b)

Q: 7. Air is composed of approximately 78% N2, 21% O2 and 1% percent other gases. Calculate the density…

A: Given: The amount of nitrogenN2 present in the air is 78%, and that of oxygenO2 is 21%.  At standard…

Q: Suppose you prepared a sample of nitrogen and collected it over water at 20 °C at a total pressure…

A:

Q: The pressure correction appears in the van der Waals equation because  A. gases are not ideal  B.…

A: Option C is correct.

Q: Which of the following gases has the lowest rate of effusion? a. N2 b. CO2 c. SO2 d. CH4 e. F2

A:

Q: GHA Calculating the mass of a gas collected over water 0/5 Sometimes in lab we collect the gas…

A: Suppose the H₂ gas evolved by a certain chemical reaction taking place at 35.0 °C is collected over…

Q: Which of the following statements is NOT correct? A. The pressure exerted by oxygen molecules is…

A: The kinetic molecular theory of gases explains various theories of gases. According to Amonton’s…

Q: Which of the following properties of a real gas is related to the b coefficient in the van der Waals…

A: Real gas is different from ideal gas in the properties like attraction or volume of molecules.

Q: At the same temperature, which of the following gases will effuse the slowest?  A. Hydrogen B.…

A: According to graham's law, the rate of effusion of any molecule is inversely proportional to the…

Q: Which of the following gases has the lowest rate of effusion?

A:

Q: speeds

A: We have three types of velocities, root means square velocity, most probable velocity, and average…

Q: The rate of effusion of unknown gas was measured and found to be 34.9mL/min. Under the same…

A: The molar mass of unknown gas is caluclated using Grahms law of effusion.

Q: You have a gas at 35°C that is confined to a 7.5 L cylinder with  pressure of 952 torr.  a.  What…

A: Given V1 = 7.5 L V2 = ? P1 = 952 torr P2 = 805 torr

Q: Consider that the air we breathe right now contains mostly N2, O2, and Ar. Which statement is true?…

A:

Q: Which balloon's gas will effuse faster, a balloon filled with Carbon dioxide or a balloon filled…

A: The rate of effusion of two gases is given as follows; r1r2=M2M1 where r is the rate of effusion and…

Q: 2. Determine the molecular weight (molar mass) of gases at STP which have densities C a. 0.090 g/L…

A: At STP -> T = 273 K P = 1 atm

Q: Answer the following questions using the ideal gas laws. a. A canister holds 553 mL of krypton at…

A: Dear student since you have posted multiple parts question, we will solve only first three parts for…

Q: What is the pressure exerted by 32 g of methane in a 250 mL vessel at 300 K using van der Waals…

A: we know, the expression for the  van der waals gas equation is => (P + an2 /V2) (V-nb) = nRT…

Q: I. Gas molecules are in constant motion in random directions, thus II. they rarely collide with one…

A:

Q: A helium balloon is filled to a volume of 15.0 L at 255 K. a.  What will the volume of the balloon…

A: At constant pressure, the volume of the gas increases with an increase in temperature. According to…

Q: A 9.334 mol sample of nitrogen gas is maintained in a 0.8012 L container at 295.0 K. What is the…

A:

Q: Which of the following gases has the lowest rate of effusion?     Select one: a. CO2 b. F2 c. CH4…

A: According to Graham's law of effusion the rate of effusion of gaseous substance is inversely…

Q: What is the molar mass of the unknown gas? 2. Use the graph to assign Xe and the unknown gas to…

A: Answer 1

Q: The rate of effusion of an unknown gas was measured and found to be 18.9 mL/min. Under the same…

A: Given, the rate of effusion of an unknown gas  =18.9 mLminunder the same conditions,  the rate of…

Q: 1) Suppose you have three identical balloons that are filled with helium gas. a. If you drive the…

A: We would use gas laws to answer these questions.

Q: Choose

A: According to the question, the amount of gas is increased to 2.94 mol, holding the volume and…

Q: 83. Calculate the root mean square velocity and kinetic energy of F2, Cl2, and Br2 at 298 K. Rank…

A:

Q: Calculate the density of a gas at STP if a given volume of the gas effuses through an apparatus in…

A: By using Graham's law of effusion . Rate of effusion of any gas is inversely proportional to square…

Q: Which of the following statements is CORRECT? Select one: a.Real gases follow the postulates of the…

A: According to kinetic molecular theory, volume occupied by gaseous molecules is negligible, the gas…

Q: 4. Which of the following gases will have the lowest rate of diffusion? A. carbon monoxide B.…

A:

Q: Given two gas samples: one of N2 and one of He. If the two samples are at the same temperature,…

A: Given gases: N2 and He These gases are kept at the same temperature. The rate of effusion has to be…

Q: A sample of XeXe takes 75 seconds to effuse out of a container. An unknown gas takes 37 seconds to…

A:

Q: The effusion rate for O2 under certain conditions is 30.50 mL/min. If the effusion rate of an…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Which of the following gases has the lowest rate of effusion?     Select one: a. CO2 b. SO2 c. N2…

A:

Q: 14. Consi 14. Consider the following pictures of gases at the same temperature. O = Ne and i. V. vi.…

A: The question is asking to rank the pictures of gases based on different parameters such as pressure,…

Q: Rank the samples of gas described in the table below in order of increasing average speed of the…

A: The average speed of the molecules is given by the formula, vavg=8RTπM T is the temperature in…

Q: * What is the relationship between molecular mass of a gas to its rate of effusion? A. The lighter…

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

Q: 1.066g sample of potassium metal is placed in water and the gas produced is collected over water in…

A: A. When potassium metal reacts with water, it forms potassium hydroxide and hydrogen gas .  The…

Q: Calculate the amount of H2S in cubic meters measured at 49°C and at a pressure of 0.2 barG, which…

A: Hydrogen sulphide (H2S) can be prepared by action of FeS with dilute hydrochloric acid (HCl). The…

Q: Solid sodium chlorate (NaClO3) decomposes at high temperatures according to the following balanced…

A: Stoichiometry, in balanced chemical reaction is defined by the ratio at which reactants are reacting…

Q: two moles of chlorine gas is confined in a 0.50L volume at 345 K. If it acts as a van der Waals gas,…

A: Vander waals equation is given by        (P+an^2/V^2)(V-nb) = nRT for Cl2 gas ,  vander waals…

Q: Which of the following gases has the lowest rate of effusion? Select one: a. CO2 b. CH4 c. SO2

A:

Q: What is the volume of each of the follow samples of gas at STP? a. 1.00 mol C2N2 b. 8.12 mol SF6 c.…

A: Volume of gas at STP is equal to mole of gas multipley by 22.4

Q: Which gas has the highest effusion and diffusion rates at a fixed temperature and pressure? a. Kr…

A: Applying Graham diffusion law.

Q: O A sample of a certain gas has a volume of 452 mL at 711 mm Hg and 26 C. What would be the volume…

A: A sample of certain gas has a volume of 452 mL at 711 mmHg and 26°C.We have to find the volume of…

Q: Rank the samples of gas described in the table below in order of increasing average speed of the…

A: # Average speed of gas molecules  = ( 8 RT / πM ) 1/2 Where ; R = 8.314 J/mol·K = gas constant  T =…

Q: Relerences] The rate of effusion of a particular gas was measured and found to be 26.9 mL/min. Under…

A: We know that, effusion is the passage of a gas through a tiny particle into an evacuated chamber.…

Q: Part 1. Determine the molar mass of a 0.622-gram sample of gas having a volume of 2.4 L at 287 K and…

A: The molar mass of a gas can be determined by the mass and number of moles of the gas. The number of…

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.