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Get Full Access to Chemistry: The Central Science - 14 Edition - Chapter 15 - Problem 15.11
Get Full Access to Chemistry: The Central Science - 14 Edition - Chapter 15 - Problem 15.11

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# ?The following diagrams represent equilibrium mixtures for the reaction $$\mathrm{A}_{2}+\mathrm{B} \rightleftharpoons \mathrm{A}+\mathrm{AB}$$ at 300

ISBN: 9780134414232 1274

## Solution for problem 15.11 Chapter 15

Chemistry: The Central Science | 14th Edition

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Problem 15.11

The following diagrams represent equilibrium mixtures for the reaction $$\mathrm{A}_{2}+\mathrm{B} \rightleftharpoons \mathrm{A}+\mathrm{AB}$$ at 300 K and 500 K. The A atoms are red, and the B atoms are blue. Is the reaction exothermic or endothermic? [Section 15.7]

Text Transcription:

A_2 + B \rightleftharpoons A + AB

Step-by-Step Solution:

Step 1 of 5) In recent years fracking, short for hydraulic fracturing, has become widely used to greatly increase the availability of petroleum reserves. In fracking, a large volume of water, typically two million gallons or more, mixed with various additives, is injected at high pressure into wellbores extended horizontally into rock formations (Figure 18.23). The water is laden with sand, ceramic materials, and other additives, including gels, foams, and compressed gases, that serve to increase the yield in the process. The high-pressure fluid finds its way into tiny faults in geological formations, releasing petroleum and natural gas. Fracking has greatly increased petroleum reserves, particularly of natural gas, in many parts of the world. Unfortunately, the potential for environmental damage from fracking is significant. The large volume of fracking fluid required to create a well must be returned to the surface. Without purification the fluid is rendered unfit for other uses, and becomes a large-scale environmental problem. Often the waste water is allowed to sit in open waste water pits. The 2005 Energy Policy act and other federal legislation exempts hydraulic fracturing operations from certain provisions of the Safe Drinking Water act and other regulations.

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?The following diagrams represent equilibrium mixtures for the reaction $$\mathrm{A}_{2}+\mathrm{B} \rightleftharpoons \mathrm{A}+\mathrm{AB}$$ at 300