A sample of gas contains 0.1300 mol of C2H4(g) and 0.1300 mol of H2(g) and occupies a volume of 12.5 L. The following reaction takes place: C2H4(g) + H2(g) C2H6(g) Calculate the volume of the sample after the reaction takes place, assuming that the temperature and the pressure remain constant. L

A sample of gas contains 0.1300 mol of C2H4(g) and 0.1300 mol of H2(g) and occupies a volume of 12.5 L. The following reaction takes place: C2H4(g) + H2(g) C2H6(g) Calculate the volume of the sample after the reaction takes place, assuming that the temperature and the pressure remain constant. L

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter9: Gases

Section: Chapter Questions

Problem 92E: Describe what happens o the average kinetic energy of ideal gas molecules when the conditions are...

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Question

A sample of gas contains 0.1300 mol of C2H4(g) and 0.1300 mol of H2(g) and occupies a volume of 12.5 L. The
following reaction takes place:
C2H4(g) + H2(g) C2H6(g)
Calculate the volume of the sample after the reaction takes place, assuming that the temperature and the
pressure remain constant.
L

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Similar questions

Butane gas, C4H10, is sold to campers as bottled fuel. Its density at 25C and 1.00 atm is 2.38 g/L. What volume of butane gas at 25C and 1.00 atm is required to heat one gallon of water (d=1.00g/mL) from 25C to 98C ? The reaction for the combustion of butane (H f =125.6kJ/mol) is C4H10(g)+132 O2(g)4CO2(g)+5H2O(g)
Carbon monoxide, CO, and oxygen, O2, react according to 2CO(g)+O2(g)2CO2(g) Assuming that the reaction takes place and goes to completion, determine what substances remain and what their partial pressures are after the valve is opened in the apparatus represented in the accompanying figure. Also assume that the temperature is fixed at 300 K.
Describe what happens o the average kinetic energy of ideal gas molecules when the conditions are changed as follows: (a) The pressure of the gas is increased by reducing the volume at constant temperature. (b) The pressure of the gas is increased by increasing the temperature at constant volume. (c) The average velocity of the molecules is increased by a factor of 2.
105 The decomposition of mercury(II) thiocyanate produces an odd brown snake-like mass that is so unusual the process was once used in fireworks displays. There are actually several reactions that take place when the solid Hg(SCN)2 is ignited: 2Hg(SCN)2(s)2HgS(s)+CS2(s)+C3N4(s)CS2(s)+3O2(g)CO2(g)+2SO2(g)2C3N4(s)3(CN)2(g)+N2(g)HgS(s)+O2(g)Hg(l)+SO2(g) A 42.4-g sample of Hg(SCN)2 is placed into a 2.4-L vessel at 21°C. The vessel also contains air at a pressure of 758 torr. The container is sealed and the mixture is ignited, causing the reaction sequence above to occur. Once the reaction is complete, the container is cooled back to the original temperature of 21°C. (a) Without doing numerical calculations, predict whether the final pressure in the vessel will be greater than, less than, or equal to the initial pressure. Explain your answer. (b) Calculate the final pressure and compare your result with your prediction. (Assume that the mole fraction of O2 in air is 0.21.)

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