Concept explainers
Interpretation:
Increasing order of average molecular speed of the given molecules should be given.
Concept Introduction:
Kinetic-molecular theory of gases:
Properties of gases are different from solids and liquids. When pressure is applied to gases, they are easily compressed to smaller volume and they have low densities. These properties can be explained by a theory called kinetic-molecular theory.
The four assumptions of this theory are given below:
- Gases are made up of particles like atoms or molecules which randomly move and there will be no attractive forces between them.
- Comparing the space occupied by the gas particles and the space between particles, the former is much smaller than the latter.
- The average kinetic energy of gas particles and the Kelvin temperature is proportional.
- There is an elastic collision between gas particles or with the wall of their container and thus no energy is lost during collision and total kinetic energy of the particles is constant.
Kinetic energy: The kinetic energy for the object is the energy of the object due to its motion and it is given by the following formula,
Where,
Want to see the full answer?
Check out a sample textbook solutionChapter 8 Solutions
Chemistry: The Molecular Science, Hybrid Edition (with OWLv2 24-Months Printed Access Card)
- perform stoichiometric ca1cu1uions for reactions involving gases as reactants or products.arrow_forward109 An ore sample with a mass of 670 kg contains 27.7% magnesium carbonate, MgCO3. If all of the magnesium carbonate in this ore sample is decomposed to form carbon dioxide, describe how to determine what volume of CO2 is evolved during the process. What would have to be measured to predict the needed volume in advance?arrow_forwardGiven that a sample of air is made up of nitrogen, oxygen, and argon in the mole fractions 0.78 N2, 0.21 O2, and 0.010 Ar, what is the density of air at standard temperature and pressure?arrow_forward
- A 1.0-L flask contains 10.0 g each of O2 and CO2 at 25 C. (a) Which gas has the greater partial pressure, O2 or CO2, or are they the same? (b) Which molecules have the greater rms speed, or are they the same? (c) Which molecules have the greater average kinetic energy, or are they the same?arrow_forward47 HCl(g) reacts with ammonia gas, NH3(g), to form solid ammonium chloride. If a sample of ammonia occupying 250 mL at 21 C and a pressure of 140 torr is allowed to react with excess HCl, what mass of NH4Cl will form?arrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning