Question

Calculate the standard entropy change for the following reaction at 25 °C. S° 2CH3OH(g)+3O2(g)=2CO2(g)+4H2O(g)

Calculate the standard entropy change for the following reaction at 25 °C. S° 2CH3OH(g)+3O2(g)=2CO2(g)+4H2O(g)

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

2CH3OH(g)+3O2(g)=2CO2(g)+4H2O(g)

delta So (CH3OH) = 239.81 J/mol-K
delta So (O2) = 205.14 J/mol-K
delta So (CO2) = 213.74 J/mol-K
delta So (H2O) = 188.83 J/mol-K


delta So (Rxn) = 2*delta So (CO2) +4*delta So (H2O) - 2*delta So (CH3OH) - 3*delta So (O2)
                             = 2*213.74 + 4*188.83 - 2*239.81 - 3*205.14
                             = 87.76 J/mol-K

Answer: 87.76 J/mol-K

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. Consider the following chemical reaction: 2CH3OH(l) + 3O2 (g) → 2CO2 (g) + 4H2O(l) Calculate...
1. Consider the following chemical reaction: 2CH3OH(l) + 3O2 (g) → 2CO2 (g) + 4H2O(l) Calculate the number of moles of CO2 produced when 11.25 mL of methanol CH3OH reacted completely with O2 (g). The density of methanol is 0.79 g/mL.
Calculate the standard enthalpy change for the following reaction at 25 °C. Standard enthalpy of formation...
Calculate the standard enthalpy change for the following reaction at 25 °C. Standard enthalpy of formation values can be found in this table. 2CH3OH(g)+3O2(g)--->2CO2(g)+4H2O(g)
The balanced equation for the combustion of methanol is 2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(g). Calculate ΔH∘rxn, ΔS∘rxn, and  ΔG∘rxn at 25...
The balanced equation for the combustion of methanol is 2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(g). Calculate ΔH∘rxn, ΔS∘rxn, and  ΔG∘rxn at 25 ∘C. Is it spontaneous or nonspontaneous?
Calculate ΔS°for the combustion of methanol. 2CH3OH(g) + 3O2(g) → 2CO2(g) + 4H2O(g) Substance CH3OH(g) O2(g)...
Calculate ΔS°for the combustion of methanol. 2CH3OH(g) + 3O2(g) → 2CO2(g) + 4H2O(g) Substance CH3OH(g) O2(g) CO2(g) H2O(g) S°(J/K·mol) 240 205.138 213.74 188.825 -42.6 J/K -87.3 J/K 42.6 J/K 87.3 J/K
use standard enthalpies of format to calculate Hrxn for each reaction. 1:2H2S (g) +3O2 (g)     2H2O...
use standard enthalpies of format to calculate Hrxn for each reaction. 1:2H2S (g) +3O2 (g)     2H2O (l) 2SO2 (g) 2: 3NO2 (g)+H2O (l)       2HNO3 (aq) +NO (g) 3: N2O4 (g) + 4H2 (g)      N2 (g) +4H2O (g) 4: CR2O3 (S) +3CO (g)     2CR (S)+3CO2 (g) Calculate Kc for each reaction and predict whether reactant and product s will be favor at equilibrium 1: CH3OH(g)         CO (g) + 2H2 (g) 2: 2CO2 (g)+2CF2 (g)        4COF2 (g) 3: 6COF2 (g)         3CO2(g)+3CF2 (g)...
consider the following reaction C2H5OH + 3O2 ---> 2CO2 + 3H2O Calculate the change of enthalpy...
consider the following reaction C2H5OH + 3O2 ---> 2CO2 + 3H2O Calculate the change of enthalpy (delta H).
Calculate the standard enthalpy change for the following reaction at 25 °C.? Calculate the standard enthalpy...
Calculate the standard enthalpy change for the following reaction at 25 °C.? Calculate the standard enthalpy change for the following reaction at 25 °C. Mg(OH)2(s)+2HCL(g)-->MgCl2(s)+2H2O(g) Srxn=?
Consider the reaction 2CO2(g) + 5H2(g)C2H2(g) + 4H2O(g) Using the standard thermodynamic data in the tables...
Consider the reaction 2CO2(g) + 5H2(g)C2H2(g) + 4H2O(g) Using the standard thermodynamic data in the tables linked above, calculate G for this reaction at 298.15K if the pressure of each gas is 17.64 mm Hg. ANSWER:_____ kJ/mol
Consider a fuel cell that uses the reaction of ethanol with oxygen to produce electricity. CH3CH2OH(l)+3O2(g)⟶2CO2(g)+3H2O(l)CH3CH2OH(l)+3O2(g)⟶2CO2(g)+3H2O(l)...
Consider a fuel cell that uses the reaction of ethanol with oxygen to produce electricity. CH3CH2OH(l)+3O2(g)⟶2CO2(g)+3H2O(l)CH3CH2OH(l)+3O2(g)⟶2CO2(g)+3H2O(l) Use thermodynamic data to determine the value of E∘cellEcell° for this cell at 25 °C.25 °C.
For the following complete redox reaction under acidic conditions: C2H5OH (g) + 3O2 (g) --> 2CO2...
For the following complete redox reaction under acidic conditions: C2H5OH (g) + 3O2 (g) --> 2CO2 (g) + 3H2O (g) Find and balance the reduction half reaction: Find and balance the oxidation half reaction: What is the Gibb's free energy, Delta G of this reaction? What is the standard potential E knot of this reaction under standard conditions?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT