Question

At 298 K, the Standard Heat of Combustion of Diamond is 395.3 kJ/mol and that of...

At 298 K, the Standard Heat of Combustion of Diamond is 395.3 kJ/mol and that of Graphite is 393.4 kJ/mol. Their Molar Entropies are 2.439 J/K and 5.694 J/K mol, respectively.

(a). Find G for the transition of Graphite ---> Diamond at 298K and 1atm. The density is 3.510 g/cm-3 for diamond and 2.260 g/cm-3 for graphite.

(b). Calculate the pressure at which diamond and graphite would be in equilibrium at 298K and 1300K.

Assuming that the Densities and H are independent of pressure

Homework Answers

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
Diamond a. At 298 K, what is the Gibbs free energy change G for the following...
Diamond a. At 298 K, what is the Gibbs free energy change G for the following reaction? Cgraphite ->  Cdiamond b. Is the diamond thermodynamically stable relative to graphite at 298 K? c. What is the change of Gibbs free energy of diamond when it is compressed isothermally from 1 atm to 1000 atm at 298 K? d. Assuming that graphite and diamond are incompressible, calculate the pressure at which the two exist in equilibrium at 298 K. e....
4. Thermodynamic data for C(graphite) ​and C(​​diamond)​ at 298 K is given in the table below....
4. Thermodynamic data for C(graphite) ​and C(​​diamond)​ at 298 K is given in the table below. delta Hf​o ​(kJ/mol) o​ (J/mol K C​(graphite) 0.0 5.740 C​(diamond) 1.895 2.377 a) Calculate delta H​o​ and delta S​o and delta G​o ​for the transformation of 1 mole of graphite to diamond at 298 K. b) Is there a tempature at which this transformation will occur spontaneously at atmospheric pressure? Justify your answer. 8. Methanol can be made using the Fischer-Tropsch process according to...
For the following reaction dHorxn= 63.11 kJ/mol and dSorxn= 148 J/mol K. BaCl2H2O(s) <---> BaCl2(s) +...
For the following reaction dHorxn= 63.11 kJ/mol and dSorxn= 148 J/mol K. BaCl2H2O(s) <---> BaCl2(s) + H2O(g) a) Write out the equilibrium constant for the reaction and use it to calculate the vapor pressure of the gaseous water (PH2O) avoe the BaCl2 H2O at 298K. b) Assuming dHorxn and dSorxn are temperature independent estimate the temperature at which the quilibrium constant (and the PH2O) = 1bar.
If the heat of combustion for a specific compound is -1370.0 kJ/mol and its molar mass...
If the heat of combustion for a specific compound is -1370.0 kJ/mol and its molar mass is 40.13 g/mol, how many grams of this compound must you burn to release 458.60 kJ of heat?
If the heat of combustion for a specific compound is -1450.0 kJ/mol and its molar mass...
If the heat of combustion for a specific compound is -1450.0 kJ/mol and its molar mass is 91.49 g/mol, how many grams of this compound must you burn to release 485.30 kJ of heat?
The standard enthalpy change for this reaction is -731 kJ/mol at 298 K. 2 N2(g) +...
The standard enthalpy change for this reaction is -731 kJ/mol at 298 K. 2 N2(g) + 4 H2(g) + 3 O2(g) = 2 NH4NO3(s) ΔrH° = -731 kJ/mol Calculate the standard enthalpy change for the reaction N2(g) + 2 H2(g) + 3/2 O2(g) = NH4NO3(s) at 298 K.
Knowing that the ∆G for the combustion of liquid ethanol (CH3CH2OH(l)) at the constant temperature of...
Knowing that the ∆G for the combustion of liquid ethanol (CH3CH2OH(l)) at the constant temperature of 302.1K and standard pressure is -1328.4 kJ/mol, derive the standard molar entropy of liquid ethanol. Give your answer in J K-1 mol-1. Use the following values, assuming that ∆H and ∆S are temperature-independent within the range considered: ∆fHo(CO2(g)) = -398.8 kJ/mol ∆fHo(H2O(l)) = -288.3 kJ/mol ∆fHo(Ethanol(l)) = -276.6 kJ/mol Smo(CO2(g)) = 211.1 J K-1 mol-1 Smo(H2O(l)) = 72.4 J K-1 mol-1 Smo(O2(g))= 202.8 J...
Calculate the work (w) and ΔEo, in kJ, at 298 K and 1 atm pressure, for...
Calculate the work (w) and ΔEo, in kJ, at 298 K and 1 atm pressure, for the combustion of one mole of C4H10 (g). First write and balance the equation. The products will be CO2 (g) and H2O (g). The value of ΔHo for this reaction is -2658.3 kJ/mol. The value for w in kJ = The value for ΔEo ( in kJ) =
The heat of combustion of liquid hexane (C6H14) to carbon dioxide and liquid water at 298...
The heat of combustion of liquid hexane (C6H14) to carbon dioxide and liquid water at 298 K is -4215 kJ/mol .Find ΔE for this reaction.
Thermodynamics: Consider the equilibrium reaction A(g) + B(g) -><- C(g)+D(g). At T=298 K, the standard enthalpies...
Thermodynamics: Consider the equilibrium reaction A(g) + B(g) -><- C(g)+D(g). At T=298 K, the standard enthalpies of formation of the components in the gas phase are -20, -40, -30, and -10 kJ/mol for A,B,C, and D, respectively. The standard-state entropies of the components in the gas phase are 30, 50, 50, and 80 J/(mol K), in the same order. The vapor pressure of liquid C at this temperature is 0.1 bar, while all other components are volatile gases with Henry's...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT