Question

True or false. If false, explain why. a. The relation G = H – T S...

True or false. If false, explain why.

a. The relation G = H – T S is valid for all processes.

b. G = A + pV.

c. G is undefined for a process in which T changes.

d. G = 0 for a reversible phase change at constant T and p.

e. G = 0 for a chemical reaction in equilibroum at constant T and p.

f. sysS  surrS is positive for every irreversible process.

g. fH298 is zero for O2.h. fH400 is zero for O2.

i. For the combustion of glucose, cST = cHT / T at 298 K.

j. When an exothermic reaction in a closed system with only P-V work is run under isobaric and adiabatic conditions, rH = 0.

k. When an exothermic reaction in a closed system with only P-V work is run under isobaric and isothermal conditions, rH = 0.

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
For the reaction C(s) + H2O(g) CO(g) + H2(g) H° = 133.3 kJ/mol and S° =...
For the reaction C(s) + H2O(g) CO(g) + H2(g) H° = 133.3 kJ/mol and S° = 121.6 J/K mol at 298 K. At temperatures greater than ________ °C this reaction is spontaneous under standard conditions.
True False A.deltaU = 0 for a reversible phase change at constant T and P. B....
True False A.deltaU = 0 for a reversible phase change at constant T and P. B. If q = 0 for a process, then that process must be isothermal. C. pV work is usually negligible for solids and liquids.
HgO(s) Hg(g) O2(g) Enthaply Delta H kj/mol -90.8 61.3 Entropy Delta S   j/mol. K 70.3 174.9...
HgO(s) Hg(g) O2(g) Enthaply Delta H kj/mol -90.8 61.3 Entropy Delta S   j/mol. K 70.3 174.9 205.0 Above is a table of thermodynamics date for the chemical species in the reaction: 2HgO(s) ----> 2Hg(g)+ O2(g) at 25 C A) Calculate the molar entropy of reaction at 25 C B) Calculate the standard Gibbs free enregy of the reaction at 25 C given that the enthaply of reaction at 25 C is 304.2 Kj/mol C)Calculate the equilibrium constant for the reaction...
True or false and explain why: Entropy is 0 for elements under standard conditions, Delta G...
True or false and explain why: Entropy is 0 for elements under standard conditions, Delta G and Delta G^0 are equal when a system is at equilibrium.
1) For which of the following processes does entropy decrease? A. H2(g) + Cl2(g)   →   2HCl(g)...
1) For which of the following processes does entropy decrease? A. H2(g) + Cl2(g)   →   2HCl(g) B. N2(g) + 3H2(g)   → 2NH3(g) C. Making amorphous glass from crystalline SiO2 (quartz) D. CH3OH(l) → CH3OH(aq) 2) Use the values provided in the table to calculate the standard free energy change for the following reaction at 298 K:   2H2O2(g)  → 2H2O(g) + O2(g)   Substance ∆Gf° (kJ/mol) at 298 K H2O(g) −228 H2O2(g) −105 A −666 kJ B +666 kJ C +246 kJ D −246...
A sample containing 2.50 moles of He (1 bar, 345 K ) is mixed with 1.75...
A sample containing 2.50 moles of He (1 bar, 345 K ) is mixed with 1.75 mol of Ne (1 bar, 345 K ) and 1.50 mol of Ar (1 bar, 345 K ). Calculate ΔGmixing. Calculate ΔSmixing. Express your answer with the appropriate units. Calculate ΔA for the isothermal compression of 3.11 mol of an ideal gas at 321 K from an initial volume of 60.0 L to a final volume of 20.5 L.​ Does it matter whether the...
32) 3.00 moles of an ideal gas are expanded isothermally against a constant pressure of 1...
32) 3.00 moles of an ideal gas are expanded isothermally against a constant pressure of 1 atm from 2.0 liters to 10.0 liters at a temperature of 20.0 C. Which of the following is incorrect? 1. w = -PDV = -(1atm)(8 l) = -(101.3 J/l)(8 l) = -811.2 J 2. q = -w (since DU = 0) = 811.2 J 3. DU = 0 (since isothermal ideal gas) 4. DSSYS = ∆H/T = 0 33) In general, for a thermodynamic...
Consider permutations of the 26-character lowercase alphabet Σ={a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z}. In how many of these permutations do a,b,c...
Consider permutations of the 26-character lowercase alphabet Σ={a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z}. In how many of these permutations do a,b,c occur consecutively and in that order? In how many of these permutations does a appear before b and b appear before c?
Part I. Indicate whether true or false (T or F). ____ Storm water detention ponds typically...
Part I. Indicate whether true or false (T or F). ____ Storm water detention ponds typically are designed to regulate the outflow peak rate at or below a single target value, such as the pre-development (pre-land use change) peak runoff rate for a specified return period event. Detention storage alters the peak but not the volume of the outflow hydrograph. _____ Typical rating curves for weirs are concave upward. Typical rating curves for orifices are concave downward. ____ A sediment...
Can you please check my answers and tell me if they are correct? thanks 8. Write...
Can you please check my answers and tell me if they are correct? thanks 8. Write the ionic equation for dissolution and the solubility product (Ksp) expression for each of the following slightly soluble ionic compounds: (a) PbCl2       PbCl2(s) --> Pb2+(aq) + 2Cl-(aq)                           Ksp = [Pb2+][Cl-]2   (b) Ag2S        Ag2S(s) --> 2Ag+(aq) + S2-(aq)                             Ksp =[Ag+]2[S2-] (c) Sr3(PO4)2 Sr3(PO4)2(s) --> 3Sr2+(aq) + 2PO43-(aq)         Ksp =[Sr2+]3[PO43-]2 (d) SrSO4       SrSO4(s) --> Sr2+(aq) + SO42-(aq)                       Ksp =[Sr2+][SO42-] 14. Assuming that no equilibria other than dissolution are involved,...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT