
Physical Chemistry
2nd Edition
ISBN: 9781133958437
Author: Ball, David W. (david Warren), BAER, Tomas
Publisher: Wadsworth Cengage Learning,
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Textbook Question
Chapter 3, Problem 3.55E
Why isn’t the entropy of elements in their standard pressure at normal (that is, room) temperatures equal to zero?
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Write structural formulas for the major products by
doing addition reactions
1. You must add H2 as Pt is catalyst it does not take part in reactions
only speed up the process
H₂
CH2=CH-CH3
Pt
2. Add HCI break it into H and Cl
CH3
HCI
3. Add Br2 only CC14 is catalyst
CH3-CH=CH2
B12
CCl4
4. Add water to this and draw major product, H2SO4 is catalyst you have add
water H20 in both the reaction below
H₂SO4
CH3-CH=CH2
CH3
H2SO4/H₂O
CH3-C=CH2
reflux
?
Plan the synthesis of the following compound using the starting
material provided and any other reagents needed as long as
carbon based reagents have 3 carbons or less. Either the
retrosynthesis or the forward synthesis (mechanisms are not
required but will be graded if provided) will be accepted if all
necessary reagents and intermediates are shown (solvents and
temperature requirements are not needed unless specifically
involved in the reaction, i.e. DMSO in the Swern oxidation or
heat in the KMnO4 oxidation).
H
H
Hint These are benzene substitution reactions.
ALCI3 and UV light are catalyst no part in reactions and triangle A means
heating.
A. Add ethyl for Et in benzene ring alkylation reaction EtCl =
CH3CH2CL
1) EtC1 / AlCl3 / A
?
B: Add Br to benzene ring ( substitution)
2) Br₂ / uv light
?
C Add (CH3)2 CHCH2 in benzene ring ( substitution)
(CH3)2CHCH,C1 / AICI,
?
Chapter 3 Solutions
Physical Chemistry
Ch. 3 - Decide whether the following processes will be...Ch. 3 - Try to find one additional example of a...Ch. 3 - Consider the following quantities for a...Ch. 3 - Consider the following quantities for a four-step...Ch. 3 - What is the temperature of the low-temperature...Ch. 3 - What is the temperature of the high - temperature...Ch. 3 - Prob. 3.7ECh. 3 - Explain why the high-temperature reservoir of a...Ch. 3 - Superheated steam is steam with a temperature...Ch. 3 - Prob. 3.10E
Ch. 3 - The Carnot cycle is defined as having a certain...Ch. 3 - In thermodynamics, the pathway in a...Ch. 3 - A refrigerator is the reverse of an engine: Work...Ch. 3 - Efficiency is given by equations 3.5, 3.6, and...Ch. 3 - What is the entropy change for an ideal Carnot...Ch. 3 - What is the entropy change for the melting of...Ch. 3 - What is the entropy change for the solidification...Ch. 3 - Explain why the statement No process is 100...Ch. 3 - What is the change in entropy of 1.00mole of water...Ch. 3 - Prob. 3.20ECh. 3 - One mole of He warms up irreversibly at constant...Ch. 3 - Consider a monatomic ideal gas in a piston...Ch. 3 - A 0.500-mol sample of an ideal gas has an initial...Ch. 3 - SO2 in a piston chamber kept in a...Ch. 3 - A normal breath has a volume of about 1L. The...Ch. 3 - An automobile tire contains 15.6L of air at...Ch. 3 - An automobile tire contains 15.6L of air at...Ch. 3 - A sample of ideal gas from a compressed gas...Ch. 3 - Prob. 3.29ECh. 3 - In Example 3.5, a heat capacity of 20.78J/molK was...Ch. 3 - Prob. 3.31ECh. 3 - 4.00L of Ar and 2.50L of He, each at 298K and...Ch. 3 - Dentists might use a mixture of 40N2O and 60O2 as...Ch. 3 - A 5.33-g piece of Cu metal is heated to 99.7C in...Ch. 3 - A sample of 1.00mol of silver at 150C is placed in...Ch. 3 - Prob. 3.36ECh. 3 - What is the change in entropy when 2.22mol of...Ch. 3 - Estimate the entropy change of an 800-lb engine...Ch. 3 - Calculate the molar entropy change of the gas that...Ch. 3 - A normal breath is about 1L in volume. Assume you...Ch. 3 - The first law of thermodynamics is sometimes...Ch. 3 - Troutons rule states that the entropy of boiling...Ch. 3 - Prob. 3.43ECh. 3 - Argue from Boltzmanns definition for entropy that...Ch. 3 - Prob. 3.45ECh. 3 - Which system has the higher entropy? a A clean...Ch. 3 - Which system has the higher entropy? a 1g of solid...Ch. 3 - The absolute entropy of He at 298.15K is...Ch. 3 - The absolute entropy of Kr at 298.15K is...Ch. 3 - The element helium is thought to remain a liquid...Ch. 3 - Order the following substances in order of...Ch. 3 - The molar entropy change for a process is...Ch. 3 - What is the entropy change of a process if ...Ch. 3 - One mole of ideal gas expands isothermally and...Ch. 3 - Why isnt the entropy of elements in their standard...Ch. 3 - Determine the entropy of formation, fS, of the...Ch. 3 - The thermite reaction has solid aluminum powder...Ch. 3 - Prob. 3.58ECh. 3 - Determine the differences in the rxnS under...Ch. 3 - Calcium carbonate has two crystalline forms,...Ch. 3 - The chemical formula for gasoline can be...Ch. 3 - Prob. 3.62ECh. 3 - Prob. 3.63ECh. 3 - Plants take in CO2(g) and H2O(l) and make glucose,...Ch. 3 - Prob. 3.65ECh. 3 - Prob. 3.66ECh. 3 - Plots of Cp/T versus T are used to determine the...
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