A vacuum cleaner creates a negative air pressure of -20 kPa relative to the air outside the vacuum cleaner. Suppose 0.50 mol of a monoatomic ideal gas (Cv,m = 3/2 R) in a diathermic piston at 26.5 °C was suddenly exposed to this low pressure environment. (Assume that we are at sea level.) a) Calculate the w, AU, AH and q for this gas expansion. %3D

A vacuum cleaner creates a negative air pressure of -20 kPa relative to the air outside the vacuum cleaner. Suppose 0.50 mol of a monoatomic ideal gas (Cv,m = 3/2 R) in a diathermic piston at 26.5 °C was suddenly exposed to this low pressure environment. (Assume that we are at sea level.) a) Calculate the w, AU, AH and q for this gas expansion. %3D

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Please no written by hand and no image
I am confused. Help, please!
the answer of part A is 0.721
Hello, I understand that cp for diatomic ideal gas is 7/2R. How do I find the same for a gas like carbon dioxide?
Can someone please explain how to solve this problem? You should get an answer of 5096.4.
A rigid insulated tank is divided into 2 equal compartments by athin rigid partition. One of the compartments contains air, assumedto be an ideal gas at 800 kPa and 250◦C. The other compartment isunder a vacuum. The partition is suddenly broken and the air rushesinto the evacuated compartment. The tank pressure and temperatureeventually equilibrate. (a) what is the final temperature of the gas ◦C?(b) what is the final pressure, kPa?(c) how much work is done by the system, kJ/kg?(d) how much heat is transferred to the system kJ/kg
1C.5 The virial equation of state may also be written as an expansion in terms of pressure: Z= 1 + B'p+ ... The critical constants for water, H,0, are 218.3 atm, 55.3 cm³ mol-1 and 647.4 K. Assuming that the expansion may be truncated after the second term, calculate the value of the second virial coef- ficient B'at the critical temperature. %3D
4. The equation of state for a van der Waal's gas is: RT V-by², where Vm is the molar volume, V/n. p= m a m Starting with an expression for U(S,Vm), derive an expression for the internal pressure, TT, and calculate its change when a van der Waal's gas with a = 4.14 atm L²mol-2 and b = 5.15 x 10-2 Lmol-¹ is cooled from 200°C to 10°C.
Xenon and helium are both ideal, monatomic gases, but they have very different molar masses (Mxenon = 33*Mhelium). If you have 1 mole of each gas and the gases are at the same temperature, which one of the following statements is true? They both have the same internal energy, but xenon has a lower root-mean-square speed than helium. They both have the same internal energy and root-mean-square speed. They both have the same root-mean-square speed, but xenon has a greater internal energy than helium. They both have the same internal energy, but helium has a lower root-mean-square speed than xenon. They both have the same root-mean-square speed, but helium has a greater internal energy than xenon.
For a van der Waals gas: a V2 Calculate AUm (in J mol-) for the isothermal reversible expansion of N2 gas from an initi volume of 1.00 L to 24.8 L at 298 K. (3) [Given: a(N2) = 1.352 L2. atm mol-2]