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Interpretation:
Whether the conversion of A to B is an exothermic reaction or endothermic reaction should be identified on increase in equilibrium concentration of B.
Concept Introduction:
A chemical equilibrium shifted towards forward direction or backward direction depends on the concentration of both reactant and products.
Exothermic reaction:
A
Endothermic reaction:
A chemical reaction in which energy is added when reactant converted into products known as endothermic reaction.
Temperature effect:
In a reaction, reactant molecule collides with each other and many bonds are break and formed in this process; all this process depend on the kinetic energy of molecules and as we increase the temperature the kinetic energy also increases as a result
Consider and equilibrium reaction:
Here, a, b, c and d are coefficient.
If we add excess concentration of c and d, then the chemical equilibrium will shifted in backward direction.
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Chapter 7 Solutions
Introduction to General, Organic and Biochemistry
- Problem 7-7 Consider the following equilibrium reaction for the decomposition of an aqueous solution of hydrogen peroxide: Oxygen has limited solubility in water (see the table in Chemical Connections 6A). What happens to the equilibrium after the solution becomes saturated with oxygen?arrow_forwardThese are practice questions. Please help! Thanks.arrow_forwardAnswer number 1arrow_forward
- 4:47 Question 1 of 13 Consider the following diagrams which show the progress for the reaction A (blue) B (red). The equilibrium constant (K) for this reaction is 0.8. At which point does the reaction reach equilibrium? BEFORE AFTER A) B) A) see problem image Submit C) D) B) see problem image Tap here or pull up for additional resourcesarrow_forwardQUESTION 6 The equilibrium constant (K) for an endothermic reaction at 25 deg C is 1.4x10-4. If the temperature increased to 165 deg C what will happen to the value of K? Will be greater than 1.4x10-4 Will be less than 1.4x10-4 Will be equal to 1.4x10 (no change) Not enough information is provided. O O O Oarrow_forwarded 2NH3(9) N2(g) + 3H₂(g) The equilibrium constant, K, for the following reaction is 1.87 at 674 K. Calculate Ke at this temperature for the following reaction: NH3(g) =1/2N2(g) + 3/2H₂(g) Kc LO 104-55 important Submit Answer Retry Entire Group TOP this ques 8 more group attempts remainingarrow_forward
- Heating a metal carbonate leads to decomposition. BaCO3(s) BaO(s) + CO2(g) Predict the effect on the equilibrium of each change listed below. Answer by choosing (i) no change, (ii) shifts left or (iii) shifts right. (a) add BaCO3 (b) add CO2 (c) add BaO (d) raise the temperature (e) increase the volume of the flask containing the reactionarrow_forwardQuestion e Please helparrow_forwardEquilibrium reaction Keq expression Stress applied Effect Equilibrium Shi (encircle your answer) (encircle your answer) (increase, decrease, change) in H2le) + Cl2te) 2 HCI(g) Decreasing the Forward pressure no Backward (HCI)2 the No Shift K= ( H2)(Cl2) number of moles of HCl(g) e (increase, decrease, change) in Fe;O4(s) + 4 H2(g) + heat 3 Fe(s) + 4 Increasing Forward temperature Backward no H,O(g) (H20)* the No Shift K= (H2)4 volume of water 2 NO(g) + O,(g) 2 NO2(g) + heat vapor collected f (increase, Addition Forward helium decrease, Backward no K= (NO2)? change) in the No Shift (NO)2 (02) number of moles of NO H,CO3(aq) CO.(aq) + H,0(1) Removal of C (increase, decrease, change) amount of H,CO3 (increase, decrease, change) amount of O2 Forward (CO2) K= no Backward (H2CO3) in the No Shift 4 NH3(g) + 5 0,(g)4 NO(g) H,O(g) + heat Increasing Forward + 6 (NO )* (H20) temperature K= no Backward (NH3) (02)5 in the No Shiftarrow_forward
- help pls it is urgentarrow_forward◄ Search 5GE 5:20 PM Question 3 of 6 Kc = Consider the equilibrium system described by the chemical reaction below. At equilibrium, a 2.00 L reaction vessel contained a mixture of 1.20 mol Fe, 1.48 x 10-³ mol O2, and 2.00 mol of Fe₂O3 at 2500.0 °C. What are the values of Kc and Kp for this reaction? 4Fe(s) + 30₂(g) = 2Fe₂O3(s) [1.20] [1.48 x 10-³]³ 2[2.00] 1000 11% 1 2 Based on the given data, set up the expression for Kc. Each reaction participant must be represented by one tile. Do not combine terms. Once the expression is constructed, solve for Kc. Complete Parts 1-2 before submitting your answer. [1.48 x 10-³] [2.00]² [0.600] Submit [2.00] 4[1.20] [0.600]* Tap here or pull up for additional resources RESET [1.20]4 3[1.48 x 10-³] [1.00]²arrow_forwardPls answer correct and explanation fastarrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
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