Please correct answer and don't use hand raiting esc2O Advanced General ChemistryInterpreting a reaction energy diagramConsider a hypothetical chemical reaction:A+B+C+D(In this equation A, B, C and D stand for some unknown chemical formulas.)Here is an energy diagram for the reaction:400-A+B300-energy200-(kJ/mol)100C + D0reaction coordinateUse the energy diagram to answer these questions.What is the heat of reaction?Is the reaction exothermic or endothermic?Can you determine the activation energy?Can you determine the activation energy of the reverse reaction?kJ/molExothermicEndothermicNeitherYes, it's kJ/molNo.Yes, it's kJ/molExplanation!1Check$%do 5074#312QWMacBook ProLUERT66Y27&©2024 McGraw Hill LLC.J8 *

In the given energy diagram, the energy of the reactants A+B is 300 kJ/mol while the energy of the…

Answered: esc 2 O Advanced General Chemistry…

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter8: Reaction Rates And Equilibrium

Section: Chapter Questions

Problem 8.75E

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Explain why each of the following chemical equations is not a correct formation reaction: 4Al( s )+3 O 2 ( g )2 Al 2 O 3 ( s ) N 2 ( g )+ 3 2 H 2 ( g ) NH 3 ( g ) 2Na( s )+O( g ) Na 2 O( s )
9.61 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?
xplain why aluminum cans make good storage containers for soft drinks. Styrofoam cups can be used to keep coffee hot and cola cold. How can this be?
9.75 Explain why each of the following chemical equations is not a correct formation reaction. (a) 4Al(s)+3O2(g)2Al2O3(s) (b) N2(g)+32H2(g)NH3(g) (c) 2Na(s)+O(g)Na2O(s)
Hypothetical elements A2 and B2 react according to the following equation, forming the compound AB. A2(aq)+B2(aq)2AB(aq);H=+271kJ/mol If solutions A2(aq) and B2(aq), starting at the same temperature, are mixed in a coffee-cup calorimeter, the reaction that occurs is a exothermic, and the temperature of the resulting solution rises. b endothermic, and the temperature of the resulting solution rises. c endothermic, and the temperature of the resulting solution falls. d exothermic, and the temperature of the resulting solution falls. e exothermic or endothermic, depending on the original and final temperatures.
The overall reaction in a commercial heat pack can be represented as 4Fe(s)+3O2(g)2Fe2O3(s)H=1652KJ a. How much heat is released when 4.00 moles of iron are reacted with excess O2? b. How much heat is released when 1.00 mole of Fe2O3 is produced? c. How much heat is released when 1.00 g iron is reacted with excess O2? d. How much heat is released when 10.0 g Fe and 2.00 g O2 are reacted?
9.96 Most first aid "cold packs" are based on the endothermic dissolution of ammonium nitrate in water: NH4NO3(s)NH4+(aq)+NO3(aq) H= 25.69 kJ A particular cold pack contains 50.0 g of NH4NO3 and 125.0 g of water. When the pack is squeezed, the NH4NO3dissolves in the water. If the pack and its contents are initially at 24.0°C, what is the lowest temperature that this bag could reach? (Assume that the ammonium nitrate solution has a specific heat of 4.25J g-l K-l, and that the heat capacity of the bag itself is small enough to be neglected.)
9.58 For the reaction C2H2(g)+2H2(g)C2H6,H=136 kJ. What are the ratios that can be defined between moles of substances and energy?
Limestone, CaCO3, when subjected to a temperature of 900C in a kiln, decomposes to calcium oxide and carbon dioxide. How much heat is evolved or absorbed when one gram of limestone decomposes? (Use Table 8.3.)
In a calorimetric experiment, 6.48 g of lithium hydroxide, LiOH, was dissolved in water. The temperature of the calorimeter rose from 25.00C to 36.66C. What is H for the solution process? LiOH(s)Li(aq)+OH(aq) The heat capacity of the calorimeter and its contents is 547 J/C.
Use the same fat described in Question 27. (a) Write a thermochemical equation for the metabolism of fat. (b) A dieter reduces his food intake by 425 nutritional calories a day (1 nutritional calorie=1000calories). How many kJ can he lose in one day? (c) How many pounds of fat are lost in one week with this diet?
A small car is traveling at twice the speed of a larger car, which has twice the mass of the smaller car. Which car has the greater kinetic energy? (Or do they both have the same kinetic energy?)

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