BuyFind

Physical Chemistry

2nd Edition
Ball + 3 others
Publisher: Wadsworth Cengage Learning,
ISBN: 9781133958437
BuyFind

Physical Chemistry

2nd Edition
Ball + 3 others
Publisher: Wadsworth Cengage Learning,
ISBN: 9781133958437

Solutions

Chapter 19, Problem 19.12E
Textbook Problem

Interstellar space can be considered as having 10 atoms of hydrogen per cubic centimeter and an average temperature (far away from stars!) of 2.7 K . Determine (a) the pressure of hydrogen in interstellar space and (b) the average speed of the hydrogen atoms. Compare these answers with values under normal Earth conditions.

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Chapter 19 Solutions

Physical Chemistry
Ch. 19 - Use equation 19.8 and the classical definition of...Ch. 19 - Interstellar space can be considered as having...Ch. 19 - What temperature does a sample of Kr have if its...Ch. 19 - SF6 is a gas at room temperature, 295K. What is...Ch. 19 - Compare the temperatures required to have an...Ch. 19 - Consider this statement: Neon is five times more...Ch. 19 - If relativistic effects were ignored, what...Ch. 19 - a Using equation 19.23, determine what the units...Ch. 19 - Verify equation 19.25. You will need to consult...Ch. 19 - Distinguish between the definitions of g, G, and ...Ch. 19 - Verify equation 19.31 starting with equation...Ch. 19 - Show that the constant K, as defined by...Ch. 19 - Derive equation 19.34.Ch. 19 - Derive equation 19.36.Ch. 19 - What is the ratio of vrms/vmostprob for any gas at...Ch. 19 - What is the most probable speed for O3 at 45C, its...Ch. 19 - Use the Maxwell-Boltzmann distribution function to...Ch. 19 - Current research that focuses on low temperatures...Ch. 19 - Use the form of G() to find 2, then take the...Ch. 19 - Compare relative values of rms, mostprob, and ....Ch. 19 - The speed of sound in a gas, sound, is given by...Ch. 19 - The previous exercise gives an expression for...Ch. 19 - The escape velocity of the earth the velocity...Ch. 19 - Vacuum systems use some gauges that measure...Ch. 19 - The hard sphere radius of Ne is 140pm. What is the...Ch. 19 - What must the pressure be if the mean free path of...Ch. 19 - The mean free path depends on the ratio T/p. What...Ch. 19 - Derive equation 19.41.Ch. 19 - Use the conditions of exercise 19.12 to determine...Ch. 19 - Explain why the molecular diameter for argon, at...Ch. 19 - Tanks of nitrogen gas are often pressurized to...Ch. 19 - For a given sample of gas which has a certain...Ch. 19 - The vapor pressure of Hg at room temperature taken...Ch. 19 - A 1.00-mol sample of Xe gas is kept at a...Ch. 19 - What is the total number of collisions per second...Ch. 19 - Determine the collision frequency, number of...Ch. 19 - What is the total number of collisions per second...Ch. 19 - Determine a the mean free paths, b the average...Ch. 19 - Determine a the mean free paths, b the average...Ch. 19 - Consider a gas mixture containing equal...Ch. 19 - The inverse of the collision rate, 1/z, is the...Ch. 19 - Calculate the average time between collisions see...Ch. 19 - In what ways are effusion and diffusion different?...Ch. 19 - Rewrite equation 19.51 in terms of the thermal de...Ch. 19 - Equation 19.51 shows that the rate of effusion is...Ch. 19 - Estimate the rate at which Hg effuses out a hole...Ch. 19 - A 1.00-L balloon having 2.00atm of air...Ch. 19 - Knudsen effusion cells are used to determine vapor...Ch. 19 - Knudsen effusion can be used to estimate the...Ch. 19 - If an atomically clean metal surface is generated...Ch. 19 - Using equation 19.54, determine the units of D12.Ch. 19 - Determine D for a He and b Xe at standard pressure...Ch. 19 - Determine D for air at 1.00atm and 298K assuming...Ch. 19 - Use Ficks first law to demonstrate why diffusion...Ch. 19 - Verify the approximate value for D12 in Example...Ch. 19 - What is the trend in D as a temperature increases?...Ch. 19 - Calculate the total distance traveled by an...Ch. 19 - The diffusion coefficient of He in neon is...Ch. 19 - Use the D values from exercise 19.62 to determine...Ch. 19 - Consider a variation from the conditions in...Ch. 19 - Use Grahams law to determine the ratio of...Ch. 19 - For 1mole of He at 298K, compare graphs of gx...Ch. 19 - Use the graph of G(v) from exercise 19.72 to...

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