What is the equilibrium constarnt for the reaction at 645 K ?The change in enthalpy (AH) for a reaction is-34.4 kJ/mol . The equilibrium constant for thereaction is 1.8x10 at 298 K.Express your answer using two significant figures.V AEK-

Answered: Image /qna-images/answer/b9e2f460-9228-4257-9df6-c0a7a390ef5b.jpg

Answered: The change in enthalpy (AH) for a…

The change in enthalpy (AH) for a reaction is 34.4 kJ/mol. The equilbrium constant for the reaction is 1.8x10 at 298 K. What is the equibrum Express your answer using two significant figures. AEd

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: In Question 3 what is the value of AH in kJ for each of the three given reactions as well as the…

A: Enthalpy change of the reaction is mathematically expressed as ∆H=∆HP-∆HR ∆H = enthalpy change of…

Q: A student dissolves 11.3 g of ammonium nitrate (NH,NO,) in 250. g of water in a well-insulated open…

Q: Calculate AG° xn indicated in the following reaction using the given information. CiO(g)…

Q: A student dissolves 13.0 g of ammonium nitrate (NH4NO3) in 300. g of water in a well-insulated open…

A: An exothermic reaction is a chemical reaction that releases energy into the surrounding environment,…

Q: inside a calorimeter is 100 g of water at 39.8 ºC. A 10 g object at 50 ºC is placed inside of a…

A: Mass of water, m=100 g The initial temperature of water=39.8 ºC Final temperature=40ºC Change in…

Q: 11 Q nple of KOH(s) at 25.0 C was added to 100.0 g of H,O(1) at room temperature inside an insulated…

A: Given that, KOH is dissolved in water. After all the KOH is dissolved, the temperature of the…

Q: 2. Sulfur dioxide gas is reacted with oxygen gas to produce sulfur trioxide gas: SO2(g) + O₂ → SO If…

Q: Dinitrogen monoxide (also known as laughing gas) is used as an anesthetic in dentistry. It can be…

Q: Which of the following processes are exothermic? 1) Dew evaporates in the morning 2)Gasoline burns…

A: Exothermic reaction are the reaction in which heat is released and endothermic reactions are those…

Q: N2(g) + Oz(g) -- 2NO(g) AH = + 180.5 k) If the vessel that contained the reaction above was placed…

A: The chemical reactions which have attained the state of dynamic equilibrium get affected by a number…

Q: Use the following information to answer the next two questions A technician places a sample of…

A: a.) First we would write expression for Kc and plug the given concentration values at equilibrium to…

Q: If the reactants have a potential energy of 10.2 kj/mol and the products have a potential energy of…

A: Given, Potential energy of products, EP = 15.7kJ/mol Potential energy of reactants, ER= 10.3 kJ/mol…

Q: 7. Suppose you have an endothermic reaction with Keg = 1x 103. How could you adjust the temperature…

Q: Surrounding Reaction A Reaction B Temperature Initial Temp 25.1°C 25.1°C Final Temp 30.2°C 20.0°C…

Q: Consider the reaction2H2+O2⟶2H2OΔ?rxn=−484kJWhich answer best describes the transfer of heat that…

A: In the given reaction, when 2 moles of H2 reacts, reaction enthalpy is:

Q: For the reaction: HCI 40° C

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: Draw the structural formula for (4-bromopentyl) 2-chloropropanoate. a a H Br CHỊCH CO CHICH CH2…

A: Structural formulas identify the location of chemical bonds between the atoms of a molecule. A…

Q: (17) The Gibbs free energy change for the formation of iodine chlorine gas from its elements is…

Q: 1.Define direct calorimetry and indirect calorimetry, and describe how hey are used to measure…

A: Direct calorimetry measures heat production and indirect calorimetry measures gas exchange, oxygen…

Q: Calculate the required value for each reaction. 2H2 + O2→ 2H2O + 286 kJ A) what amount of energy…

A: The given data contains, Number of moles of hydrogen = 450 moles The given reaction is, 2H2 + O2…

Q: help please answer in text form with proper workings and explanation for each and every part and…

A: The balance chemical reaction is:2S(g)+3O2(g)⟷2SO3(g), and it is exothermic reaction that means…

Q: For the reaction ? Co2O3(s) + ? C(s) → A Co(s) + B CO2(g What are the coefficients A and B,…

A: BALANCED EQUATION: A chemical equation is which the number of all the atoms are present in both the…

Q: Find the heat of the reaction of the dissolution of ammonium nitrate in water. mass of water:…

Q: N2(g) + 3H2(g) → 2NH3(g) AH° rxn=-91.8 kJ Based on the above reaction, in order to increase the…

A: The given reaction is N2(g) + 3H2(g) → 2NH3(g) with a change in enthalpy (ΔH° rxn) of -91.8 kJ. This…

Q: None

A: Step 1:To determine, let's analyze this reaction using Le Chatelier's Principle : Le Chatelier's…

Q: In an exothermic reaction AH positive. negative.

A: In an exothermic reaction ∆H will be positive or negative has to be given.

Q: 4AI (s) + 30 2 (g) → 2 Al 20 3 (s)AH° = -3351 k) is and therefore heat is by the reaction. A)…

Q: /hich of the following would result in a decrease in the quantity of F, decreasing temperature…

A: The question is based on the concept of equilibrium. we have to determine which of the following…

Q: Which of the following is true about the following reaction when the temperature is raised? N₂O4(g)…

A: Given-> N2O4(g) <------> 2NO2(g) ∆H = 57.0 KJ

Q: Can you please help me understand how to solve this answer. A balloon is being inflated to its full…

A: At constant pressure the work is expressed as follows, W = P(V2-V1)

Q: Consider the equilibrium reaction shown below: Cu (s) + 3 NO31 (aq) + 8 H*+1 (aq) = 3 Cu*2 (aq) + 2…

A: Given equilibrium reaction is: Cu(s)+3NO3-1(aq)+8H+1(aq)⇌ 3Cu2+(aq)+2NO(g)+4H2O(l)

Q: The equation is 4FeS(s) + 702(g ) -> 2Fe2O3(s) + 4SO2(g), the release is 251 kJ a) State whether…

A: If the energy of the products is less than that of the energy of the reactants, the energy is…

Concept explainers

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.

Question

What is the equilibrium constarnt for the reaction at 645 K ?
The change in enthalpy (AH) for a reaction is
-34.4 kJ/mol . The equilibrium constant for the
reaction is 1.8x10 at 298 K.
Express your answer using two significant figures.
V AE
K-

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

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

# H₂O(1) H*(aq) + OH(aq) Calculate the pOH of a 0.0100 M HCl solution at 50.0 °C. AH = -55.8 kJ; K=1.0 x 10-¹4 (at 25.0 °C)
please see attached image
In Question 4 what is the value of AH in kJ for each of the three given reactions as well as the overall reaction once all mathematical changes have been applied? Reaction #1:CH2 Cl2(1) + O2(s) → COC2(3) + H2O(1) Reaction #2:HCl(g) → H2(s) + ¿Cl2(g) Reaction #3: CH2 Cl20) + H2(e) + O2(e) → COC2(e) +2H2O@) → COCl (8) +2H2O1) Overall Reaction:2 HClg) + ¿O2(g) → H2O(g) + Cl2(g) Be sure to include the proper number of significant figures in your answer otherwise it will be marked wrong. REMEMBER TO INCLUDE units in your answer and leave a space between the answer and unit. Blank # 1 Blank # 2 Blank # 3 Blank # 4
Write the chemical equation as standard State for the formation of lead carbonate as a solid
Part b For the reaction given in Part A, how much heat is absorbed when 2.60 mol of A reacts? And part c said At what temperature Teq do the forward and reverse corrosion reactions occur in equilibrium?
Identify the reactions that are exothermic. ) Multiple answers: Multiple answers are accepted for this question Select one or more answers and submit. For keyboard navigation... SHOW MORE V C(graphite)C(diamond) AH° = 2 kJ b. CaCO3 (s) CaO(s) + CO2(g) AH° = 178 kJ CuO(s) + H2 (g) → Cu(s) + H2 0(g) AH° = -85 kJ 2H2 (g) + 02(g) - 2H20(g) AH = -484 kJ 3H2 (g) + N2(g) 2NH3 (g) AH - 92 kJ Unanswered
Chloroform is an organic solvent found in many chemistry laboratories, and it is fairly volatile. The density of the vapor at a pressure of 220 mm Hg and 25 oC is 1.42 g/ L. Calculate the molar mass of chloroform; show all work.
Calculate the standard enthalpy change for the reaction at 25 ∘C. Standard enthalpy of formation values can be found in this list of thermodynamic properties. 2CH3OH(g)+3O2(g)----> 2CO2(g)+4H2O(g)