(a)
Interpretation:
When the pressure is increased by decreasing the volume to identify whether more products or more reactants is formed for the given reaction
Concept Introduction:
Enthalpy
If the value obtained for
Le Chatelier’s principle: If an equilibrium is disturbed by changing conditions, the system will moves the equilibrium to reverse the change.
Factor’s that effect chemical equilibria:
- Concentration – Equilibrium will be affected by changing the concentration of reactant or product. If we increase the concentration of reactant system will try to reverse the change by favoring forward reaction and thus increase the concentration of products. Likewise adding products increase yield of reactants.
- Temperature – When the temperature increases equilibrium will shift in the endothermic direction, in the direction that absorbs heat. When the temperature decreases equilibrium will shift in the exothermic direction, in the direction that releases heat.
- Pressure – If the reaction consists of only liquid and solid reactants and products, pressure has no effect in the equilibrium.
In gas reactions if the number of moles has no change then there will be no effect by pressure on equilibrium.
If pressure increases then equilibrium will shift to the direction having less number of molecules and if pressure decreases system will shift to the direction having more number of molecules.
(b)
Interpretation:
When the pressure is increased by decreasing the volume to identify whether more products or more reactants is formed for the given reaction
Concept Introduction:
Enthalpy
If the value obtained for
Le Chatelier’s principle: If an equilibrium is disturbed by changing conditions, the system will moves the equilibrium to reverse the change.
Factor’s that effect chemical equilibria:
- Concentration – Equilibrium will be affected by changing the concentration of reactant or product. If we increase the concentration of reactant system will try to reverse the change by favoring forward reaction and thus increase the concentration of products. Likewise adding products increase yield of reactants.
- Temperature – When the temperature increases equilibrium will shift in the endothermic direction, in the direction that absorbs heat. When the temperature decreases equilibrium will shift in the exothermic direction, in the direction that releases heat.
- Pressure – If the reaction consists of only liquid and solid reactants and products, pressure has no effect in the equilibrium.
In gas reactions if the number of moles has no change then there will be no effect by pressure on equilibrium.
If pressure increases then equilibrium will shift to the direction having less number of molecules and if pressure decreases system will shift to the direction having more number of molecules.
(c)
Interpretation:
When the pressure is increased by decreasing the volume to identify whether more products or more reactants is formed for the given reaction
Concept Introduction:
Enthalpy
If the value obtained for
Le Chatelier’s principle: If an equilibrium is disturbed by changing conditions, the system will moves the equilibrium to reverse the change.
Factor’s that effect chemical equilibria:
- Concentration – Equilibrium will be affected by changing the concentration of reactant or product. If we increase the concentration of reactant system will try to reverse the change by favoring forward reaction and thus increase the concentration of products. Likewise adding products increase yield of reactants.
- Temperature – When the temperature increases equilibrium will shift in the endothermic direction, in the direction that absorbs heat. When the temperature decreases equilibrium will shift in the exothermic direction, in the direction that releases heat.
- Pressure – If the reaction consists of only liquid and solid reactants and products, pressure has no effect in the equilibrium.
In gas reactions if the number of moles has no change then there will be no effect by pressure on equilibrium.
If pressure increases then equilibrium will shift to the direction having less number of molecules and if pressure decreases system will shift to the direction having more number of molecules.
Want to see the full answer?
Check out a sample textbook solutionChapter 7 Solutions
FUND.OF GEN CHEM CHAP 1-13 W/ACCESS
- Given the equation below, determine which statement is incorrect. 4C(s) + 6H2(g) + O2(g) → 2C2H5OH(1) AH°=555.4 kJ A) If the equation above is multiplied by two, AH° = - 1110.8 kJ B) For every 0.5 mol of O2, AH° = -277.7 kJ If the state of ethanol changes from the liquid state to the gas state, the value for AH° no loner applies. D) The value of 571.1 kJ applies to one mole of liquid ethanol. E) If the equation above is reversed, AH° = + 555.4 kJarrow_forwardPotassium superoxide, KO2, is used in rebreathing masks to generate oxygen according to the reaction below. If the mask contains 0.250 mol KO2 and 0.200 mol water, what is the limiting reagent? How many moles of excess reactant will there be once the reaction is complete? 4 KO2(s) + 2 H2O(ℓ) → 4 KOH(s) + 3 O2(g)arrow_forwardCalculate ΔG° (answer in kJ/mol) for each of the following reactions from the equilibrium constant at the temperature given. (d)CoO(s)+CO(g)⇌Co(s)+CO2(g) T=550°C Kp=4.90×102 (e)CH3NH2(aq)+H2O(l)⟶CH3NH3+(aq)+OH−(aq) T=25°C Kp=4.4×10−4 (f)PbI2(s)⟶Pb2+(aq)+2I−(aq) T=25°C Kp=8.7×10arrow_forward
- Use the following thermodynamic information to calculate ASn for the combustion of rxn acetylene, C,H,. C2H2(g) + 3 02(9) → 2 CO2(9) + 2 H2O(g) J AS rxn mol K (R) J Substance S° mol K C,H,() 201 0,9) 205 Co,(G) 214 H,O(g) 70.0arrow_forwardCalculate ΔG for the reaction H2O(l) ⇆ H+(aq) + OH−(aq) at 25°C for the following conditions. [H+] = 3.1 M, [OH−] = 4.7 ×10−4 Marrow_forwardDirect methanol fuel cells (DMFCS) have shown some promise as a viable option for providing "green" energy to small electrical devices. Calculate E° for the reaction that takes place in DMFCS: CH3OH(I) + 3/2 02(g) → CO2(g) + 2 H20(1) Use the following values. AG°H,0(1) = -237 kJ/mol AG°O2(g) = 0 kJ/mol AG°CO2(9) = -394 kJ/mol AG°CH3OH(I) = -166 kJ/mol. E° = Varrow_forward
- Consider the following reaction:ATP → AMP + 2 PiCalculate the equilibrium constant (Keq) given the following ΔG°′ values:ATP → AMP + PPi (−32.2 kJ/mol)PPi → 2Pi (−33.5 kJ/mol)arrow_forwardThe energy of activation for the reaction 2 HI – H2 + I2 is 180. kJ•mol-1 at 544 K. Calculate the rate constant using the equation k = Ae-EalRT. The collision diameter for HI is 3.5×10-8 cm. Assume that the pressure is 1.00 atm. 4.0 4.510e-27 X M-1.s-1arrow_forwardThe reaction CO2(g) + H2O(l) ⇔ H+(aq) + HCO3-(aq) has ΔH° = -12.65 kJ mol-1 and ΔS° = -192.5 J mol-1 K-1. Calculate the equilibrium constant when the temperature is 4.00 °C. (R = 8.3145 J mol-1 K-1) Multiply your answer by 109 before entering it. (Hint: remember that when calculating ΔG°, all values must be for standard state.)arrow_forward
- Nonearrow_forwardThe equation of the double reciprocal plot is y = 0.5294 x + 1.4960. What is the value of vmax (in M/s)? The substrate concentration is given in units of molarity (M) and reaction velocity has units of molarity per second (M/s). (Report to three significant figures)arrow_forwardTwo solutions, 250.0 mL of 1.00 M CaCl2(aq) and 250.0 mL of 1.00 M K2SO4(aq), are combined, and the temperature decreased by 2.40 degrees C. Determine qrxn per mole of CaSO4(s) formed in the reaction. A) +12.0 kJ/mol B) -12.0 kJ/mol C) +6.00 kJ/mol D) -6.00 kJ/molarrow_forward
- BiochemistryBiochemistryISBN:9781319114671Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.Publisher:W. H. FreemanLehninger Principles of BiochemistryBiochemistryISBN:9781464126116Author:David L. Nelson, Michael M. CoxPublisher:W. H. FreemanFundamentals of Biochemistry: Life at the Molecul...BiochemistryISBN:9781118918401Author:Donald Voet, Judith G. Voet, Charlotte W. PrattPublisher:WILEY
- BiochemistryBiochemistryISBN:9781305961135Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougalPublisher:Cengage LearningBiochemistryBiochemistryISBN:9781305577206Author:Reginald H. Garrett, Charles M. GrishamPublisher:Cengage LearningFundamentals of General, Organic, and Biological ...BiochemistryISBN:9780134015187Author:John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. PetersonPublisher:PEARSON