Chemistry Atoms First2e
2nd Edition
ISBN: 9781947172647
Author: OpenStax
Publisher: OpenStax College
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Textbook Question
Chapter 12, Problem 1E
What is a spontaneous reaction?
Expert Solution & Answer
Interpretation Introduction
Interpretation: The meaning of spontaneous reaction should be determined.
Concept Introduction: The symbolic representation of a chemical reaction in the form of formulae and symbols in which reactants are written on left hand side and the products are written on right hand side is known as chemical equation.
The chemical reaction can be classified as spontaneous and non-spontaneous.
Answer to Problem 1E
Spontaneous reaction is defined as the reaction which occurs without any external source.
Explanation of Solution
The reactions that occurs without any intervention in the given set of conditions is said to be a spontaneous reaction.
When the reactions result in increase in entropy and decrease in enthalpy of the system, thereactions are said to be favorable.
For example, a roaring of bonfire, an exothermic reaction that is energy is released in this reaction and the entropy of the system increases.
Conclusion
The reaction which occurs on its own under the given set of conditions without any external source is known as spontaneous reaction.
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Chapter 12 Solutions
Chemistry Atoms First2e
Ch. 12 - What is a spontaneous reaction?Ch. 12 - What is a nonspontaneous reaction?Ch. 12 - Indicate whether the following processes are...Ch. 12 - A helium-filled balloon spontaneously deflates...Ch. 12 - Many plastic materials are organic polymers that...Ch. 12 - In Figure 12.8 all possible distributions and...Ch. 12 - In Figure 12.8 all possible distributions and...Ch. 12 - How does the process described in the previous...Ch. 12 - Consider a system similar to the one in Figure...Ch. 12 - Consider the system shown in Figure 12.9. What is...
Ch. 12 - Consider the system shown in Figure 12.9. What is...Ch. 12 - Arrange the following sets of systems in order of...Ch. 12 - At room temperature, the entropy of the halogens...Ch. 12 - Consider two processes: sublimation of I2(s) and...Ch. 12 - Indicate which substance in the given pairs has...Ch. 12 - Predict the sign of the entropy change for the...Ch. 12 - Predict the sign of the entropy change for the...Ch. 12 - Write the balanced chemical equation for the...Ch. 12 - Write the balanced chemical equation for the...Ch. 12 - What is the difference between S and S for a...Ch. 12 - Calculate S for the following changes. (a)...Ch. 12 - Determine the entropy change for the combustion of...Ch. 12 - Determine the entropy change for the combustion of...Ch. 12 - Thermite reactions have been used for welding...Ch. 12 - Using the relevant S values listed in Appendix G,...Ch. 12 - From the following information, determine S for...Ch. 12 - By calculating Suniv, at each temperature,...Ch. 12 - Use the standard entropy data in Appendix G to...Ch. 12 - Use the standard entropy data in Appendix G to...Ch. 12 - What is the difference between G and G for a...Ch. 12 - A reaction has H=100kJ/mol and S=250J/mol.K . Is...Ch. 12 - Explain what happens as a reaction starts with G0...Ch. 12 - Use the standard free energy of formation data in...Ch. 12 - Use the standard free energy data in Appendix G to...Ch. 12 - Given: P4(s)+5O2(g)P4O10(s) G=2697.0kJ/mol...Ch. 12 - Is the formation of ozone (O3(g)) from oxygen...Ch. 12 - Consider the decomposition of red mercury(II)...Ch. 12 - Among other things, an ideal fuel for the control...Ch. 12 - Calculate G for each of the following reactions...Ch. 12 - Calculate G for each of the following reactions...Ch. 12 - Calculate the equilibrium constant at 25 C for...Ch. 12 - Determine G for the following reactions. (a)...Ch. 12 - Given that the Gf for Pb2+(aq) and Cl-(aq) is...Ch. 12 - Determine the standard free energy change, Gf, for...Ch. 12 - Determine the standard enthalpy change, entropy...Ch. 12 - The evaporation of one mole of water at 298 K has...Ch. 12 - In glycolysis, the reaction of glucose (Glu) to...Ch. 12 - One of the important reactions in the biochemical...Ch. 12 - Without doing a numerical calculation, determine...Ch. 12 - When ammonium chloride is added to water and...Ch. 12 - An important source of copper is from the copper...Ch. 12 - What happens to G (becomes more negative or more...
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- Sodium acetate crystallizes from a supersaturated solution (see Figure 12.4). What can you say about the sign of G? WTiat would you expect for the sign of S? What about the sign of H? Is the crystallization exothermic or endothermic? Explain your answersarrow_forwardFor the reaction 2Cl(aq)+Br2(l)Cl2(g)+2Br(aq)calculate the temperature at which G =0.arrow_forwardDescribe the energy and entropy changes that occur in the following processes, and indicate whether the processes are spontaneous under the conditions stated: a.On a cold day, water freezes. b.A container of water at 40C cools to room temperature. c.The odor from an open bottle of perfume spreads throughout a room.arrow_forward
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