Question

Calculate the change in Gibbs free energy for each of the following sets of ΔHrxn, ΔSrxn,...

Calculate the change in Gibbs free energy for each of the following sets of ΔHrxn, ΔSrxn, and T.

Part A

ΔH∘rxn= 90. kJ , ΔSrxn= 152 J/K , T= 303 K

Express your answer using two significant figures.

ΔG =   kJ  

Part B

ΔH∘rxn= 90. kJ , ΔSrxn= 152 J/K , T= 750 K

Express your answer using two significant figures.

ΔG =   kJ  

Part C

ΔH∘rxn= 90. kJ , ΔSrxn=− 152 J/K , T= 303 K

Express your answer using two significant figures.

ΔG =   kJ  

Part D

ΔH∘rxn=− 90. kJ , ΔSrxn= 152 J/K , T= 407 K

Express your answer using two significant figures.

ΔG =   kJ  

Homework Answers

Answer #1

Part A

ΔG∘ = ΔH∘-TΔS

ΔH∘rxn= 90. kJ , ΔSrxn= 152 J/K , T= 303 K

So ΔG∘ = = 90 X 1000 J - 303 X 152 = 43944 = 43.94 KJ

Part B

ΔG∘ = ΔH∘-TΔS

ΔH∘rxn= 90. kJ , ΔSrxn= 152 J/K , T= 750 K

ΔG∘ = 90 X 1000 - 750 X 152 = -24000 Joules = -24.00 KJ

PArt C

ΔG∘ = ΔH∘-TΔS

ΔH∘rxn= 90. kJ , ΔSrxn=− 152 J/K , T= 303 K

ΔG∘ = 90 X1000 - 303 (-152) = 136056 J = 136.06 KJ

Part D

ΔG∘ = ΔH∘-TΔS

ΔH∘rxn=− 90. kJ , ΔSrxn= 152 J/K , T= 407 K

ΔG∘ = -90 X 1000 - 407 (152) = -151864 J = -151.86 KJ

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Calculate the change in Gibbs free energy for each of the following sets of ΔHrxn ∘,...
Calculate the change in Gibbs free energy for each of the following sets of ΔHrxn ∘, ΔS∘rxn, and T. 1) ΔH∘rxn=− 97 kJ , ΔS∘rxn=− 154 J/K , T= 310 K Express your answer using two significant figures. 2) ΔH∘rxn=− 97 kJ , ΔS∘rxn=− 154 J/K , T= 856 K 3) ΔH∘rxn= 97 kJ , ΔS∘rxn=− 154 J/K , T= 310 K 4) ΔH∘rxn=− 97 kJ , ΔS∘rxn= 154 J/K , T= 408 K
Calculate the change in Gibbs free energy for each of the following sets of ?H?rxn, ?S?rxn,...
Calculate the change in Gibbs free energy for each of the following sets of ?H?rxn, ?S?rxn, and T. Part A ?H?rxn=? 115 kJ ; ?S?rxn= 248 J/K ; T= 295 K Part B ?H?rxn= 115 kJ ; ?S?rxn=? 248 J/K ; T= 295 K Part C ?H?rxn=? 115 kJ ; ?S?rxn=? 248 J/K ; T= 295 K Express your answer using two significant figures. Part D ?H?rxn=? 115 kJ ; ?S?rxn=? 248 J/K ; T= 565 K Express your answer...
1) Calculate the amount of energy in kilojoules needed to change 207 g of water ice...
1) Calculate the amount of energy in kilojoules needed to change 207 g of water ice at −10 ∘C to steam at 125 ∘C. The following constants may be useful: Cm (ice)=36.57 J/(mol⋅∘C) Cm (water)=75.40 J/(mol⋅∘C) Cm (steam)=36.04 J/(mol⋅∘C) ΔHfus=+6.01 kJ/mol ΔHvap=+40.67 kJ/mol Express your answer with the appropriate units. 2) Given the values of ΔH∘rxn, ΔS∘rxn, and T below, determine ΔSuniv. Part A ΔH∘rxn= 90 kJ , ΔSrxn= 144 J/K , T= 304 K Express your answer using two...
Given the values of ΔH∘rxn, ΔS∘rxn, and T below, determine ΔSuniv. Part A ΔH∘rxn=− 89 kJ...
Given the values of ΔH∘rxn, ΔS∘rxn, and T below, determine ΔSuniv. Part A ΔH∘rxn=− 89 kJ , ΔSrxn=− 150 J/K , T= 310 K Express your answer using two significant figures. Part B ΔH∘rxn=− 89 kJ , ΔSrxn=− 150 J/K , T= 758 K Express your answer using one significant figure. Part C ΔH∘rxn=+ 89 kJ , ΔSrxn=− 150 J/K , T= 310 K Express your answer using two significant figures. Part D ΔH∘rxn=− 89 kJ , ΔSrxn=+ 150 J/K...
A. Using given data, calculate the change in Gibbs free energy for each of the following...
A. Using given data, calculate the change in Gibbs free energy for each of the following reactions. In each case indicate whether the reaction is spontaneous at 298K under standard conditions. 2H2O2(l)→2H2O(l)+O2(g) Gibbs free energy for H2O2(l) is -120.4kJ/mol Gibbs free energy for H2O(l) is -237.13kJ/mol B. A certain reaction has ΔH∘ = + 35.4 kJ and ΔS∘ = 85.0 J/K . Calculate ΔG∘ for the reaction at 298 K. Is the reaction spontaneous at 298K under standard conditions?
he thermodynamic properties for a reaction are related by the equation that defines the standard free...
he thermodynamic properties for a reaction are related by the equation that defines the standard free energy, ΔG∘, in kJ/mol: ΔG∘=ΔH∘−TΔS∘ where ΔH∘ is the standard enthalpy change in kJ/mol and ΔS∘ is the standard entropy change in J/(mol⋅K). A good approximation of the free energy change at other temperatures, ΔGT, can also be obtained by utilizing this equation and assuming enthalpy (ΔH∘) and entropy (ΔS∘) change little with temperature. Part A For the reaction of oxygen and nitrogen to...
Part A Calculate the standard enthalpy change for the reaction 2A+B⇌2C+2D where the heats of formation...
Part A Calculate the standard enthalpy change for the reaction 2A+B⇌2C+2D where the heats of formation are given in the following table: Substance ΔH∘f (kJ/mol) A -227 B -399 C 213 D -503 Express your answer in kilojoules. Answer= 273kJ Part B: For the reaction given in Part A, how much heat is absorbed when 3.70 mol of A reacts? Express your answer numerically in kilojoules. Part C: For the reaction given in Part A, ΔS∘rxn is 25.0 J/K ....
Problem 6.29 (2) Part A Assuming that ΔH∘f is constant in the interval 275 K -...
Problem 6.29 (2) Part A Assuming that ΔH∘f is constant in the interval 275 K - 600. K, calculate ΔG∘ for the process (H2O, g,298→H2O, g, 597 K ). **Delta G is in the units: J*mol^-1 Part B Calculate the relative change in the Gibbs energy. Express your answer using two significant figures. **Relative change is a percentage!! Express your answer using four significant figures.
Calculate ΔG∘rxn and E∘cell at 25∘C for a redox reaction with n = 3 that has...
Calculate ΔG∘rxn and E∘cell at 25∘C for a redox reaction with n = 3 that has an equilibrium constant of K = 5.1×10−2. Part A Gxrn= ___ kJ Express your answer using two significant figures Part B E*cell=____ V Express your answer using two significant figures.
THERE IS NO OTHER INFORMATION GIVEN BESIDES 298K Exercise 19.87 The following reactions are important ones...
THERE IS NO OTHER INFORMATION GIVEN BESIDES 298K Exercise 19.87 The following reactions are important ones in catalytic converters in automobiles. Calculate ΔG∘for each at 298 K. Predict the effect of increasing temperature on the magnitude of ΔG∘. Part A 2CO(g)+2NO(g)→N2(g)+2CO2(g) Express your answer using four significant figures. ΔG∘rxn =   kJ   SubmitMy AnswersGive Up Part B ΔG will increase with increasing temperature. ΔG will decrease with increasing temperature. SubmitMy AnswersGive Up Part C 5H2(g)+2NO(g)→2NH3(g)+2H2O(g) Express your answer using four significant...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT