Ethylene (CH,CH,) is the starting point for a wide array of industrial chemical syntheses. For example, worldwide about 8.0 × 10" kg of polyethylene are made from ethylene each year, for use in everything from household plumbing to artificial joints. Natural sources of ethylene are entirely inadequate to meet world demand, so ethane (CH,CH,) from natural gas is "cracked" in refineries at high temperature in a kinetically complex reaction that produces ethylene gas and hydrogen gas. Suppose an engineer studying ethane cracking fills a 60.0 L reaction tank with 29.0 atm of ethane gas and raises the temperature to 500. °C. He believes K =0.30 at this temperature. Calculate the percent by mass of ethylene the engineer expects to find in the equilibrium gas mixture. Round your answer to 2 significant digits. Note for advanced students: the engineer may be mistaken about the correct value of K, and the mass percent of ethylene you calculate may not be what he actually observes.
Ethylene (CH,CH,) is the starting point for a wide array of industrial chemical syntheses. For example, worldwide about 8.0 × 10" kg of polyethylene are made from ethylene each year, for use in everything from household plumbing to artificial joints. Natural sources of ethylene are entirely inadequate to meet world demand, so ethane (CH,CH,) from natural gas is "cracked" in refineries at high temperature in a kinetically complex reaction that produces ethylene gas and hydrogen gas. Suppose an engineer studying ethane cracking fills a 60.0 L reaction tank with 29.0 atm of ethane gas and raises the temperature to 500. °C. He believes K =0.30 at this temperature. Calculate the percent by mass of ethylene the engineer expects to find in the equilibrium gas mixture. Round your answer to 2 significant digits. Note for advanced students: the engineer may be mistaken about the correct value of K, and the mass percent of ethylene you calculate may not be what he actually observes.
Introductory Chemistry: A Foundation
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ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
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Chapter6: Chemical Reactions: An Introduction
Section: Chapter Questions
Problem 20QAP: Many over-the-counter antacid tablets are now formulated using calcium carbonate as the active...
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Ethylene (CH, CH,) is the starting point for a wide array of industrial chemical syntheses. For example, worldwide about 8.0 x 10" kg of polyethylene are made
from ethylene each year, for use in everything from household plumbing to artificial joints. Natural sources of ethylene are entirely inadequate to meet world
demand, so ethane (CH, CH,) from natural gas is "cracked" in refineries at high temperature in a kinetically complex reaction that produces ethylene gas and
hydrogen gas.
Suppose an engineer studying ethane cracking fills a 60.0 L reaction tank with 29.0 atm of ethane gas and raises the temperature to 500. °C. He believes
K =0.30 at this temperature.
Calculate the percent by mass of ethylene the engineer expects to find in the equilibrium gas mixture. Round your answer to 2 significant digits.
Note for advanced students: the engineer may be mistaken about the correct value of K,
and the mass percent of ethylene you calculate may not be what he
actually observes.
%
x10
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