1. The magnitude of any enthalpy change depends on the conditions of temperature, pressure and state of the reactants and products. The more disordered the system, the smaller the entropy. 2. ASsys > 0 is an equation that represents the Second Law of Thermodynamic. The equation Sgas = 0 represents the entropy of the substance. %3D 3. Entropy changes cannot be measured with a calorimeter like enthalpy changes. If the result upon calculation of entropy changes in the universe is a positive value, the process is reactant-favored.

World of Chemistry, 3rd edition
3rd Edition
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Chapter1: Chemistry: An Introduction
Section: Chapter Questions
Problem 14A
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Answer number 1 to 5 and pls follow the instruction on the first picture.

1. The magnitude of any enthalpy change depends on the conditions of temperature, pressure
and state of the reactants and products.
The more disordered the system, the smaller the entropy.
2. ASsys > 0 is an equation that represents the Second Law of Thermodynamic.
The equation Sgas = 0 represents the entropy of the substance.
%3D
3. Entropy changes cannot be measured with a calorimeter like enthalpy changes.
If the result upon calculation of entropy changes in the universe is a positive value, the process is
reactant-favored.
4. Thermodynamics is a branch of physical chemistry that deals with thermal changes.
Thermochemistry determines the quantities of energy emitted or absorbed.
5. Changes that seem to happen by themselves in one direction are spontaneous reactions.
The entropy of the universe decreases in a spontaneous process.
Transcribed Image Text:1. The magnitude of any enthalpy change depends on the conditions of temperature, pressure and state of the reactants and products. The more disordered the system, the smaller the entropy. 2. ASsys > 0 is an equation that represents the Second Law of Thermodynamic. The equation Sgas = 0 represents the entropy of the substance. %3D 3. Entropy changes cannot be measured with a calorimeter like enthalpy changes. If the result upon calculation of entropy changes in the universe is a positive value, the process is reactant-favored. 4. Thermodynamics is a branch of physical chemistry that deals with thermal changes. Thermochemistry determines the quantities of energy emitted or absorbed. 5. Changes that seem to happen by themselves in one direction are spontaneous reactions. The entropy of the universe decreases in a spontaneous process.
MODIFIED TRUE OR FALSE.
Write the CAPITAL Letter of the correct answer.
A if both statements are true
B if the 1st statement is false and the 2nd is true
C if the 1st statement is true and the 2nd is false
D if both statements are false
I.
Transcribed Image Text:MODIFIED TRUE OR FALSE. Write the CAPITAL Letter of the correct answer. A if both statements are true B if the 1st statement is false and the 2nd is true C if the 1st statement is true and the 2nd is false D if both statements are false I.
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