Use mass to compare effusion rates of two gasses. Example: which gas will leak out of a balloon faster, helium or carbon dioxide? Explain why.

Q: a balloon originally has 0.10 moles of helium and has a volume of 0.50  L if 0.65grams of HE are…

A: The ideal gas equation is as follows,                                                  P V = n R T…

Q: If the pressure is held constant, but the temperature of the gas inside a balloon is increased, what…

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Q: Explain how increasing the volume of a gas decreases its pressure.

A: The interactions between the gas molecules are negligible compared to the solid and liquid state.…

Q: Calculate the molar mass of a gas that diffuses threetimes faster than oxygen under similar…

A: Given an unknown gas diffuses three times faster than oxygenunder similar conditions.we are asked to…

Q: What gas law is applied in breathing?

A: To find: The law which is applied in breathing

Q: - Predict: If the added mass on the lid was 50 kg, a total mass of 60 kg would exert pressure on the…

A: If the lid is not fixed on the rim, the gas will be compressed and the volume it occupies is…

Q: Gas cylinders are typically used to store gasses that would otherwise escape into the atmosphere.…

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Q: Give a brief discussion

A: ideal gas : the gas which obey gas laws at all temperature and pressure conditions is called ideal…

Q: If the pressure on a gas is decreased by one-half, what will happen to its volume?

A: Boyle's law: This law states that suppose a gas at pressure P1 changes to new pressure P2 from the…

Q: What volume would result if a balloon were filled with 7.9 g of hydrogen gas at STP?

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Q: Which property shows that gas molecules are always moving? a. Have a high density b. Easily…

A: Effusion of gases can be defined as ability of gases for escaping through a very tiny hole.…

Q: What happens to the average speed of gas molecules as the temperature increases? Why?

A: According to Kinetic Theory of Gases, The average speed is mathematically represented…

Q: A gas sample at STP contains 1.47 g oxygen and 1.66 g nitrogen. What is the volume of the gas…

A: We are given the mass of two gases , we have to find the volume at STP

Q: Describe the meaning of the expression “collecting a gas over water.”

A: The meaning of the expression “collecting a gas over water” has to be described below.

Q: WHAT happens to the volume when you inflate a birthday ballon using an air pump?Explain this change…

A: We will explain what happens to the volume when you inflate a birthday ballon using an air pump, on…

Q: A balloon originally has 0.100 moles of helium and has a volume of 0.500 L. If 0.670 grams of He are…

A: Initial moles of He = 0.100 mole Initial volume = 0.500 L Weight of He added = 0.670 gm

Q: Imagine the tire of a vehicle and the need to pump air into the tire up to a given pressure. a.…

A: If the pressure is much lower than what it should be the following things happen:

Q: Why does the volume of a balloon decrease when the temperature is decreased? Explain what happens to…

A: Ideal gas equation is the combined result of simple gas laws such as Boyle’s law, Charles’ law and…

Q: When a leaf of fresh sage or mint is rubbed between your hands, the fragrance is immediately…

A: Kinetic Molecular Theory is a set of postulates which describe the behavior and characteristics of…

Q: A 45 mL sample of a dry gas is collected at 380 torr and 25 °C. Calculate the volume of the gas…

A: Given  Volume of dry gas ( V ) =  45 mL                                        =  0.045 Liter…

Q: What is the combined gas law most commonly used?

A: Ideal gas equation is the equation which obey all gas laws under all condition of temperature and…

Q: how many molecules of hydrogen sulfide gas would be in a 11.2 L sample of gas at STP? what would the…

A: Given : Volume of gas = 11.2 L And STP conditions i.e standard temperature (273 K ) and pressure…

Q: Using the postulates of the kinetic molecular theory, explain why a gas uniformly fills a container…

A: According to the postulates of kinetic molecular theory; the motion of each particle (atom or…

Q: what gas law is when a balloon expands when more air is introduced to it.

A: When pressure is increased the baloon size decreases while if the pressure is decreased the baloon…

Q: Magnesium is oxidized with oxygen gas to form magnesium oxide. What Volume of Oxygen at STP is…

A: The reaction is shown below:

Q: 1) Explain what causes gas pressure and how is it measured?  2) Compare an ideal gas and a real…

A: 1) Gas pressure is caused by the force exerted by gas molecules colliding with the surfaces of…

Q: Under the same conditions of temperature and pressure, how many times faster will hydrogen effuse…

A: Given : Same temperature and pressure conditions

Q: A balloon originally has 0.100 moles of helium and has a volume of 0.500 L. If 0.650 grams of He are…

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Q: A sample of oxygen gas has its absolute temperature halved while the pressure of the gas remained…

A: GivenOriginal pressure of the gas = PNew pressure of the gas = POriginal temperature of the gas =…

Q: According to Charles’ law, if the volume of a container of a gas is doubled, at constant pressure,…

A: Charles’ law states that at constant pressure, the volume of a given amount of gas is directly…

Q: A gas sample is initially at 3.58 atm and 7.11 L. If the volume is adjusted to 7.28 L, what pressure…

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Q: 8.62 mol of Cl2 gas at STP will occupy how much volume ?

A: ideal gas equation  PV=nRT  P=pressure V=volumr n=number of moles R=Gas constant T=temperature…

Q: Gas pressure is caused by A. gas molecules hitting other gas molecule B. gas molecules colliding…

A: Pressure is determined by the flow of a mass from a high pressure region to a low pressure region.…

Q: Neon gas and argon gas are mixed together in a porous container. Which will effuse faster? Why

A: Graham's Law of Effusion: The rate of effusion of gas is inversely proportional to the square root…

Q: A balloon originally has 0.100 moles of helium and has a volume of 0.500 L. If 0.690 grams of He are…

A: Given: Initial moles of He = 0.100 mol Initial volume of balloon = 0.500 L Mass of He added = 0.690…

Q: If the volume occupied by the gas molecules shown below were doubled, what would happen to the…

A: Interpretation: To identify what happens to pressure when the volume of gaseous molecules is…

Q: When a balloon is placed inside a freezer, what will happen to it's volume? Which gas law will…

A: When a balloon is placed inside a freezer the gas gets colder. As the temperature inside the freezer…

Q: According to Boyle’s law, if you triple the volume of a gas while holding the temperature constant,…

A: According to the Boyles if you triple the volume of a gas while holding the temperature constant the…

Q: Can the gas laws be explained by molecular behavior? How can molecular behavior explain gas…

A: Q1) The gas laws can be explained by the molecular behaviour.

Q: oxygen can be generated in the lab by heating potassium chlorate until it decomposes. what mass of…

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Q: What is the partial pressure of Gas B?

A: Given :- Total pressure = 2.94 atm               Partial pressure of Gas A = 0.70 atm  To calculate…

Q: A balloon has a volum 28°C. What will be its volum where the atmospheric pressu

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Q: A balloon originally has 0.100 moles of helium and has a volume of 0.500 L. If 0.530 grams of He are…

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Q: What volume of oxygen gas, at 533 °C and 750 Torr, could be produced by the of 38.1 g of potassium…

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Q: If the volume of a gas doubles while the temperature decreases to a quarter of its original value,…

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Q: 58.1 g of He gas at STP will occupy how much volume? (Include your formula used and the set-up.)

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Q: What gas law does this show? Charles law or Boyle’s law?

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Q: 72.1 g of Ne gas at STP will occupy how much volume?

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Q: Fundamentally, pressure is defined as force per unit area. What is the source of the force in a gas…

A: Concept is based on kinetic theory of gases:

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.