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Bond Enthalpies (Section)Using Table estimate ?H for each

Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward ISBN: 9780321696724 27

Solution for problem 71E Chapter 8

Chemistry: The Central Science | 12th Edition

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Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward

Chemistry: The Central Science | 12th Edition

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Problem 71E

BOND ENTHALPIES (section 8.8)

Using Table 8.4, estimate ΔH for the following gas-phase reactions:

(a) 2CH4(g) + O2(g) → 2CH3OH(g)

(b) H2(g) + Br2(g) → 2HBr(g)

(c) 2H2O2(g) → 2H2O(g) + O2(g)

Step-by-Step Solution:
Step 1 of 3

Macroeconomics March 14, 2016  Measuring the Macro-Economy - How is the economy doing - How do we know - National Income Accounting: looks at accounting data for entire economy - Most important measure of national income accounting is GDP - Gross domestic product: total market value of all final goods and services produced in the US in a calendar year  Gross Domestic Product - Market value means prices used for tally (add up prices) so, GDP totals up prices of stuff produced - 2015 NOMINAL GDP- - $18.1 Trillion - Nominal- current output GDP in current places, unadjusted for inflation increases the price level overtime - Unadjusted= Nominal know both terms - Nominal figures are problematic if idea is to measure real changes in stuff produced  Nominal vs. Real - Nominal GDP: current output in current places unadjusted for inflation increases in price level overtime - Real GDP: GDP that has been adjusted for price level changes, it reflects changes in output more clearly Dishes Price Nominal GDP Year 1 3 3 $9 Year 2 3 4 $12 - Didn’t produce more but increase in Nominal GDP - A price index is used to convert nominal to real GDP - Nominal GDP is put in base year prices Dishes Price Real GDP Year 1 3 3 $9 Year 2 3 4 $12 The first red arrow is the current output ; and the second arrow pointing down is the base year price showing the REAL GDP for YEAR 2 = $9… - WE ALWAYS WANT/PREFER REAL GDP  Understanding GDP - Final not intermediate = goods produced for further processing - Avoids Double Counting - GOAL IS MORE - How much should GDP grow each year  2%-5% (short-run fluctuations) per year - Long run trend for US GDP growth is 3% - So, what is a “bad” growth rate {other words for bad would be: sluggish, fatigue, anemic, etc…} 1-2%, but it is still positive - Recession- standard rule of thumb is 2 consecutive quarters of falling real GDP [6 months] Quarter every 3 months

Step 2 of 3

Chapter 8, Problem 71E is Solved
Step 3 of 3

Textbook: Chemistry: The Central Science
Edition: 12
Author: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward
ISBN: 9780321696724

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Bond Enthalpies (Section)Using Table estimate ?H for each