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Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243

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BuyFindarrow_forward

Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
Chapter 16, Problem 91AE
Textbook Problem
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Consider the reactions

Ni 2+ ( a q ) + 6 NH 3 ( a q ) Ni ( NH 3 ) 6 2 + ( a q ) ( 1 ) Ni 2+ ( a q ) + 3 en ( a q ) Ni ( en ) 3 2 + ( a q ) ( 2 )

Where

en=H 2 N-CH 2 CH 2 NH 2

The ∆H values for the two reactions are quite similar, yet Kreaction2 > Kreaction1.Explain.

Interpretation Introduction

Interpretation: An explanation regarding the fact that the values of enthalpy change for the two reactions are quite similar but not rate constant is to be stated.

Concept introduction: The term ΔGο is a thermodynamic function. The superscript on this function represents its standard form. The term Δ represents the change. This function is known as the standard Gibb’s free energy change. It correlates the enthalpy and entropy of the system in a mathematical formula. The rate constant is also relates with the Gibb’s energy.

Explanation of Solution

Given

The reactions is given as,

Ni2+(aq)+6NH3(aq)Ni(NH3)62+(aq)Ni2+(aq)+3en(aq)Ni(en)62+(aq)

The group (en) is H2NCH2CH2H2N .

The values of ΔH is similar

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Chapter 16 Solutions

Chemistry: An Atoms First Approach
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Ch. 16 - For the process A(l) A(g), which direction is...Ch. 16 - For a liquid, which would you expect to be larger,...Ch. 16 - Gas A2 reacts with gas B2 to form gas AB at a...Ch. 16 - What types of experiments can be carried out to...Ch. 16 - A friend tells you, Free energy G and pressure P...Ch. 16 - You remember that G is related to RT ln(K) but...Ch. 16 - Predict the sign of S for each of the following...Ch. 16 - Is Ssurr favorable or unfavorable for exothermic...Ch. 16 - At 1 atm, liquid water is heated above 100C. 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