Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN: 9781938168390
Author: Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher: OpenStax
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Textbook Question
Chapter 16, Problem 20E
What is the difference between △S, △S °, and △S °298 for a Chemical change?
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Chemistry by OpenStax (2015-05-04)
Ch. 16 - What is a spontaneous reaction?Ch. 16 - What is a nonspontaneous reaction?Ch. 16 - Indicate whether the following processes are...Ch. 16 - A helium-filled balloon spontaneously deflates...Ch. 16 - Many plastic materials are organic polymers that...Ch. 16 - In Figure 16.8 all possible distributions and...Ch. 16 - In Figure 16.8 all of the possible distributions...Ch. 16 - How does the process described in the previous...Ch. 16 - Consider a system similar to the one in Figure...Ch. 16 - Consider the system shown in Figure 16.9. What is...
Ch. 16 - Consider the system shown in Figure 16.9. What is...Ch. 16 - Arrange the following sets of systems in order of...Ch. 16 - At room temperature, the entropy of the halogens...Ch. 16 - Consider two processes: sublimation of I2(s) and...Ch. 16 - Indicate which substance in the given pairs has...Ch. 16 - Predict the sign of the entropy change for the...Ch. 16 - Predict the sign of the entropy change for the...Ch. 16 - Write the balanced chemical equation for the...Ch. 16 - Write the balanced chemical equation for the...Ch. 16 - What is the difference between S, S , and S 298...Ch. 16 - Calculate S298 for the following changes. (a)...Ch. 16 - Determine the entropy change for the combustion of...Ch. 16 - Determine the entropy change for the combustion of...Ch. 16 - Thermite reactions have been used for welding...Ch. 16 - Using the relevant S 298 values listed in Appendix...Ch. 16 - From the following information, determine S298 for...Ch. 16 - By calculating Suniv, at each temperature,...Ch. 16 - Use the standard entropy data in Appendix G to...Ch. 16 - Use the standard entropy data in Appendix G to...Ch. 16 - What is the difference between G, G, and G 298 for...Ch. 16 - A reaction has H298=100 kj/mol and S298=250 J/mol ...Ch. 16 - Explain what happens as a reaction starts with G0...Ch. 16 - Use the standard free energy of formation data in...Ch. 16 - Use the standard free energy data in Appendix G to...Ch. 16 - Given: P4(s)+5O2(g)P4O10(s)G298=2697.0kJ/mol...Ch. 16 - Is the formation of ozone (O3(g)) from oxygen...Ch. 16 - Consider the decomposition of red mercury(II)...Ch. 16 - Among other things, an ideal fuel for the control...Ch. 16 - Calculate G for each of the following reactions...Ch. 16 - Calculate G for each of the following reactions...Ch. 16 - Calculate the equilibrium constant at 25 C for...Ch. 16 - Calculate the equilibrium constant at 25 C for...Ch. 16 - Calculate the equilibrium constant temperature...Ch. 16 - Calculate the equilibrium constant temperature...Ch. 16 - Consider the following reaction at 298 K:...Ch. 16 - Determine the normal boiling point (in kelvin) of...Ch. 16 - Under what conditions is N2O3(g)NO(g)+NO2(g)...Ch. 16 - At mom temperature, the equilibrium constant (Kw)...Ch. 16 - Hydrogen sulfide is a pollutant found in natural...Ch. 16 - Consider the decomposition of CaCO3(s) into CaO(s)...Ch. 16 - In the laboratory, hydrogen chloride (HCl(g)) and...Ch. 16 - Benzene can be prepared from acetylene....Ch. 16 - Carbon dioxide decomposes into CO and O2 at...Ch. 16 - Carbon tetrachloride, an important industrial...Ch. 16 - Acetic acid, CH3CO2H, can form a dimer,...Ch. 16 - Nitric acid, HNO3, can be prepared by the...Ch. 16 - Determine G for the following reactions. (a)...Ch. 16 - Given that the Gf for Pb2+(aq) and Cl-(aq) is...Ch. 16 - Determine the standard free energy change, Gf, for...Ch. 16 - Determine the standard enthalpy change, entropy...Ch. 16 - The evaporation of one mole of water at 298 K has...Ch. 16 - In glycolysis, the reaction of glucose (Glu) to...Ch. 16 - One of the important reactions in the biochemical...Ch. 16 - Without doing a numerical calculation, determine...Ch. 16 - When ammonium chloride is added to water and...Ch. 16 - An important source of copper is from the copper...Ch. 16 - What happens to G (becomes more negative or more...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- A piece of lead of mass 121.6 g was heated by an electrical coil. From the resistance of the coil, the current, and the Time the current flowed, it was calculated that 235 J of heat was added to the lead. The temperature of the lead rose from 20.4C to 35.5C. What is the specific heat of the lead?arrow_forwardFormic acid, HCHO2, was first discovered in ants (formica is Latin for ant). In an experiment, 5.48 g of formic add was burned at constant pressure. 2HCHO2(l)+O2(g)2CO2(g)+2H2O(l) If 30.3 kJ of heat evolved, what is H per mole of formic acid?arrow_forwardWhat is the difference between G, G, and G 298 for a chemical Change?arrow_forward
- The specific heat of copper metal was determined by putting a piece of the metal weighing 35.4 g in hot water. The quantity of heat absorbed by the metal was calculated to be 47.0 J from the temperature drop of the water. What was the specific heat of the metal if the temperature of the metal rose 3.45C?arrow_forwardChlorine dioxide, ClO2, is a reddish yellow gas used in bleaching paper pulp. The average speed of a ClO2 molecule at 25C is 306 m/s. What is the kinetic energy (in joules) of a ClO2 molecule moving at this speed?arrow_forwardAcetic acid, HC2H3O2, is the sour constituent of vinegar (acetum is Latin for vinegar). In an experiment, 3.58 g of acetic acid was burned. HC2H3O2(l)+2O2(g)2CO2(g)+2H2O(l) If 52.0 kJ of heat evolved, what is H per mole of acetic acid?arrow_forward
- Principles of Heat Flow Titanium is a metal used in jet engines. Its specific heat is 0.523 J/g C. If S.SS g of titanium absorb 4.78 J, what is the change in temperature?arrow_forward9.61 Silane, SiH4, burns according to the reaction, SiH4+2O2SiO2+2H2O , with H=1429 kJ. How much energy is released if 15.7 g of silane is burned?arrow_forwardAs the gas trapped in a cylinder with a movable piston cools, 1.34 kJ of work is done on the gas by the surroundings. If the gas is at a constant pressure of 1.33 105 Pa, what is the change of volume (in L) of the gas?arrow_forward
- Why is it usually easier to use G to determine the spontaneity of a process rather than Su ?arrow_forwardConsider the following reaction: N2(g)+3H2(g)2NH3(g) Calculate G for this reaction under the following conditions (assume an uncertainty of 1 in all quantities): a. T=298K,PN2=PH2=200atm,PNH3=50atm b. T=298K,PN2=200atm,PH2=600atm,PNH3=200atmarrow_forwardIn the reaction of two moles of gaseous hydrogen and one mole of gaseous oxygen to form two moles of gaseous water vapor, two moles of products are formed from three moles of reactants. If this reaction is done at 1.01 104 Pa (and at 0 C), the volume is reduced by 22.4 L. (a) In this reaction, how much work is done on the system (H2, O2, H2O) by the surroundings? (b) The enthalpy change for this reaction is 483.6 kJ. Use this value, along with the answer to (a), to calculate rU, the change in internal energy in the system.arrow_forward
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