(a)
Interpretation:
The value of
Concept introduction:
The measure of the total amount of randomness or disorder of molecules of the system is known as entropy. It is denoted by
Answer to Problem 17.50E
The value of
Explanation of Solution
The given value of temperature is
The standard temperature is
The given pressure is
The value of universal gas constant is
The standard entropy of carbon atom is
The expression to calculate the value of entropy is given below.
Where,
•
•
•
•
Substitute the values of
The given value
The value of
(b)
Interpretation:
The value of
Concept introduction:
The measure of the total amount of randomness or disorder of molecules of the system is known as entropy. It is denoted by
Answer to Problem 17.50E
The value of
Explanation of Solution
The given value of temperature is
The standard temperature is
The given pressure is
The value of universal gas constant is
The standard entropy of iron atom is
The expression to calculate the value of entropy is given below.
Where,
•
•
•
•
Substitute the values of
The given value
The value of
(c)
Interpretation:
The value of
Concept introduction:
The measure of the total amount of randomness or disorder of molecules of the system is known as entropy. It is denoted by
Answer to Problem 17.50E
The value of
Explanation of Solution
The given value of temperature is
The standard temperature is
The given pressure is
The value of universal gas constant is
The standard entropy of mercury atom is
The expression to calculate the value of entropy is given below.
Where,
•
•
•
•
Substitute the values of
The given value
According to the calculations, there is some major difference in the carbon and iron atoms entropy values whereas the entropy of mercury is same as given.
The value of
Want to see more full solutions like this?
Chapter 17 Solutions
EBK PHYSICAL CHEMISTRY
- Calculate H298 for the process Co3O4(s)3Co(s)+2O2(g) from the following information: Co(s)+12O2(g)CoO(s)H298=237.9kJ3CoO(s)+12O2(g)Co3O4(s)H298=177.5kJarrow_forwardThe white pigment TiO2 is prepared by the reaction of titanium tetrachioride, TiCl4, with water vapor in the gas phase: TiCl4(g)+2H2O(g)TiO2(s)+4HCl(g). How much heat is evolved in the production of exactly 1 mole of TiO2(s) under standard state conditions?arrow_forwardThe following reactions can be used to prepare samples of metals. Determine the enthalpy change under standard state conditions for each. (a) 2Ag2O(s)4Ag(s)+O2(g) (b) SnO(s)+CO(g)Sn(s)+CO2(g) (c) Cr2O3(s)+3H2(g)2Cr(s)+3H2O(l) (d) 2Al(s)+Fe2O3(s)Al2O(s)+2Fe(s)arrow_forward
- The thermochemical equation for the burning of methane, the main component of natural gas, is CH4(g)+2O2(g)CO2(g)+2H2O(l)H=890kJ (a) Is this reaction endothermic or exothermic? (b) What quantities of reactants and products are assumed if H = 890 kJ? (c) What is the enthalpy change when 1.00 g methane burns in an excess of oxygen?arrow_forwardConsider the Haber process: N2(g)+3H2(g)2NH3(g);H=91.8kJ The density of ammonia at 25C and 1.00 atm is 0.696 g/L. The density of nitrogen, N2, is 1.145 g/L, and the molar heat capacity is 29.12 J/(mol C). (a) How much heat is evolved in the production of 1.00 L of ammonia at 25C and 1.00 atm? (b) What percentage of this heat is required to heat the nitrogen required for this reaction (0.500 L) from 25C to 400C, the temperature at which the Haber process is run?arrow_forwardStrontium metal is responsible for the red color in fireworks. Fireworks manufacturers use strontium carbonate, which can be produced by combining strontium metal, graphite (C), and oxygen gas. The formation of one mole of SrCO3 releases 1.220103 kJ of energy. (a) Write a balanced thermochemical equation for the reaction. (b) What is H when 10.00 L of oxygen at 25C and 1.00 atm are used by the reaction?arrow_forward
- What mass of carbon monoxide must be burned to produce 175 kJ of heat under standard state conditions?arrow_forwardDoes the standard enthalpy of formation of H2O(g) differ from H for the reaction 2H2(g)+O2(g)2H2O(g)?arrow_forwardThe enthalpy change for the following reaction is 393.5 kJ. C(s,graphite)+O2(g)CO2(g) (a) Is energy released from or absorbed by the system in this reaction? (b) What quantities of reactants and products are assumed? (c) Predict the enthalpy change observed when 3.00 g carbon burns in an excess of oxygen.arrow_forward
- Given the following data P4(s)+6Cl2(g)4PCl3(g)H=1225.6KJP4(s)+5O2(g)P4O10(s)H=2967.3KJPCI3(g)+Cl2(g)PCl5(g)H=84.2KJPCl3(g)+12O2(g)Cl3PO(g)H=285.7KJ calculate H for the reaction P4O10(s)+6PCl5(g)10Cl3PO(g)arrow_forwardAlthough the gas used in an oxyacetylene torch (Figure 5.7) is essentially pure acetylene, the heat produced by combustion of one mole of acetylene in such a torch is likely not equal to the enthalpy of combustion of acetylene listed in Table 5.2. Considering the conditions for which the tabulated data are reported, suggest an explanation.arrow_forward
- General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningWorld of ChemistryChemistryISBN:9780618562763Author:Steven S. ZumdahlPublisher:Houghton Mifflin College DivChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
- Chemistry by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStaxChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning