INTRODUCTION TO CHEMISTRY-CONNECT ACCESS
5th Edition
ISBN: 9781265064570
Author: BAUER
Publisher: MCG
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Chapter 12, Problem 27QP
Interpretation Introduction
Interpretation:
The reason for the observation that the steak takes less time to cook than a roast in spite being cooked at the same temperature is to be explained.
Concept Introduction:
Every reaction occurs at a particular pace. This particular rate at which reaction occurs is known as the
For the formation of a particular product, the reactants have to collide in a particular orientation or effective orientation and at the same time, they have to cross the energy barrier for which they require activation energy.
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MISSED THIS? Read Section 19.9 (Pages 878-881); Watch IWE 19.10
Consider the following reaction:
CH3OH(g)
CO(g) + 2H2(g)
(Note that AG,CH3OH(g) = -162.3 kJ/mol and AG,co(g)=-137.2 kJ/mol.)
Part A
Calculate AG for this reaction at 25 °C under the following conditions:
PCH₂OH
Pco
PH2
0.815 atm
=
0.140 atm
0.170 atm
Express your answer in kilojoules to three significant figures.
Ο ΑΣΦ
AG = -150
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kJ
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Calculate the free energy change under nonstandard conditions (AGrxn) by using the following relationship:
AGrxn = AGrxn + RTInQ,
AGxn+RTInQ,
where AGxn is the standard free energy change, R is the ideal gas constant, T is the temperature in kelvins, a
is the reaction quotient.
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Identify and provide a brief explanation of Gas Chromatography (GC) within the context of chemical analysis of food. Incorporate the specific application name, provide a concise overview of sample preparation methods, outline instrumental parameters and conditions ultilized, and summarise the outcomes and findings achieved through this analytical approach.
Chapter 12 Solutions
INTRODUCTION TO CHEMISTRY-CONNECT ACCESS
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