-42 cm/mol for CH and B = -732 8.6 At 25°C, B cm/mol for n-C,H0. For a mixture of 0.0300 mol of CH, and 0.0700 mol of n-C,H0 at 25°C in a 1.000-L vessel, calculate the pressure using the virial equation and (a) the approximation B12 =(B, + B,); (b) the fact that for this mixture, B12 = –180 cm³/mol. Compare the results with the ideal-gas-equation %3D %3D %3D result.

-42 cm/mol for CH and B = -732 8.6 At 25°C, B cm/mol for n-C,H0. For a mixture of 0.0300 mol of CH, and 0.0700 mol of n-C,H0 at 25°C in a 1.000-L vessel, calculate the pressure using the virial equation and (a) the approximation B12 =(B, + B,); (b) the fact that for this mixture, B12 = –180 cm³/mol. Compare the results with the ideal-gas-equation %3D %3D %3D result.

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...

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Concept explainers

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.

Question

8.6 At 25°C, B = -42 cm³/mol for CH, and B = -732
cm³/mol for n-C,H10. For a mixture of 0.0300 mol of CH, and
0.0700 mol of n-C,H10 at 25°C in a 1.000-L vessel, calculate
the pressure using the virial equation and (a) the approximation
B12 = (B, + B,); (b) the fact that for this mixture, B = -180
cm³/mol. Compare the results with the ideal-gas-equation
%3D
%3D
12
result.

8.40 For each of the following pairs, state which species has
the greater van der Waals a, which has the greater van der
Waals b, which has the greater T, and which has the greater
Avan Hm at the normal boiling point. (a) He or Ne; (b) C,H, or
C3Hg; (c) H,O or H,S.

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If a gas occupies 47.6 dm3 at SATP, what is its volume at 1.0 bar and 500 K? The acronym for new standard temperature and pressure (T = 298.15 K, p = 1.0 bar) replaces the old STP for standard temperature and pressure.
Calculate the pressure exerted in atm by 3.0 moles of ammonia when it is behaving as (a) a perfect gas in atm at 25°C in 22.414L and (b) van der Waals (VDW) gas at 100°C in 1000.0 cm3. Given van der Waals constants: a(NH3) (L2.atm/mol2) = 4.17 and b(NH3)(L/mol) = 0.037. The pperfect gas = .............atm and pVDW = ................ atm 3 sig. figures normal format.
An important process for the production of acrylonitrile (C3H3N) is given by the following equation: 2C3H6(g) + 2NH3(g) + 302(g) - 2C3H3N(g) + 6H20(g) A 150.-L reactor is charged to the following partial pressures at 25°C: Pc3H6 = 0.500 MPa PNH3 =5 0.800 MPa Poz = 1.500 MPa What mass of acrylonitrile can be produced from this mixture (MPa = 106 Pa)? %3D 1.61 x 10 g C3H3N 1.61 x 10 g C3H3N 2.87 x 10 g C3H3N 1.00 x 10 g C3H;N
The combustion of propane, C,Hs, in a gas fuelled car, produces CO,, which is expelled from the exhaust pipe as gas (g): C,H 50 3CO, 4H,O What is the volume of CO, produced, during a day of summer, at the temperature of 40°C and a pressure of 99.5 kPa when 19.5 g of propane are burned in this reaction? (Note the molecular weight of C;H; is 44.1 g mol-). Select one: a. 24.0 m2 O b.31.2 dm O c 34.7 dm O d.4.71 m² O e 2.37 dm Finish attempt .. Previous page A Week 11 Student Feedback Jump to.. O QMplus Media A QMplus Hub Help & Support QMPLUS ARCHIVE LIBRARY LUELD G CU RRORT
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The van der Waals equation of state was designed (by Dutch physicist Johannes van der Waals) to predict the relationship between pressure p, volume V and temperature T for gases better than the Ideal Gas Law does: n (p+₁ +²2) (v- (V-nb)=nRT The parameters a and b must be determined for each gas from experimental data. Use the van der Waals equation to answer the questions in the table below. What are the units of a? The van der Waals equation of state. R stands for the gas constant and n for moles of gas. What are the units of b? For ethane the numerical value of a is 5.507 and the numerical value of b is 0.0651. Use the van der Waals equation to calculate the pressure of a sample of ethane at 105.0 °C with a molar volume of 5.27 L/mol. Round your answer to the correct number of significant digits. Use the Ideal Gas Law to calculate the pressure of the same sample under the same conditions. Round your answer to the correct number of significant digits. 0 0 atm atm x10 DO X ロ・ロ

At a constant temperature, an ideal gas is compressed from 6.0 Liters to 4.0 Liters by a constant external pressure of 5.00 atm. 1 atm =1.01 x 10° Pa Answer the following questions by filling in the blanks a. What is the constant external pressure applied to the gas in Pa? Represent your answer with 3 significant figure using scientific notation, without units.e.g. 1.23E+3 The external presure applied to the gas is Pa b. What is the change in volume of the gas in Liters? Represent your answer with 1 decimal place using normal notation, without units. The change in volume of the gas is C. What is the change in volume of the gas in m3? Represent your answer with 3 significant figure using normal notation, without units. The change in volume of the gas is m3 d. How much work (in kJ) is done on the gas? Represent your answer with 3 decimal.places using normal.notation, without units The work done on the gas is kJ 16°C Sunny