HomeworkLib
Question

Determine the value of ΔSsurr at 325 K and assume constant pressure. Express your answer to...

Determine the value of ΔSsurr at 325 K and assume constant pressure.
Express your answer to 3 significant figures in units of kJ mol-1 K-1.

4NH3(g) + 3O2(g) → 2N2(g) + 6H2O(g) ΔrH = -1267 kJ mol-1

science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

∆Ssurr = -∆H/T

∆Hrxn = -1267 KJ/mol

T = 325 K

∆Ssurr = -(-1267)/325

= 3.90 KJ/mol.K

0 0
Add a comment
Know the answer?
Add Answer to:
Determine the value of ΔSsurr at 325 K and assume constant pressure. Express your answer to...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Calculate ΔSsurr at the indicated temperature for a reaction. ΔH∘rxn= 126 kJ ; 66 K Express...

    Calculate ΔSsurr at the indicated temperature for a reaction. ΔH∘rxn= 126 kJ ; 66 K Express your answer using two significant figures.

  • 1.) Calculate  ΔHºrxn ΔSsurr and ΔSºrxn to determine if the reaction is spontaneous at 298 K ΔHºf...

    1.) Calculate  ΔHºrxn ΔSsurr and ΔSºrxn to determine if the reaction is spontaneous at 298 K ΔHºf : PCl3(g) = -287 kj/mol ΔSºf :  PCl3(g) = -3112 J/mol *K ΔSºf : P4(s) = 41.1 J/mol*K ΔSºf : Cl2(g)= 2230 J/mol *K P4(s) +6Cl2(g) ------> 4PCl3(g) 2.) Calculate ΔGºrxn from enthalpy and entropy values at 298 K 4NH3 (g) +5O2(g) -----> 4 NO(g) +6H2O(g) ΔHºf : NO(g) = 90.29 kj/mol ΔHºf: H2O(g) = -241.826 kJ/mol ΔHºf: NH3(g) = -45.9 kJ/mol ΔSºf : NO(g)...

  • The equilibrium constant for the decomposition of NO2 to NO and O2 is 1.95×10−13 at 298...

    The equilibrium constant for the decomposition of NO2 to NO and O2 is 1.95×10−13 at 298 K. What is the equilibrium constant at 990 K, given that the ΔrH∘ is 116.2 kJ⋅mol−1? Express your answer to three significant figures. Answer is in Kelvin

  • Question 12: (1 point) What are the values of  q, w, ΔU, ΔH, ΔS, ΔSsurr, and ΔSuniv...

    Question 12: (1 point) What are the values of  q, w, ΔU, ΔH, ΔS, ΔSsurr, and ΔSuniv for the following a constant pressure process for a system containing 0.572 moles of CH3OH ? CH3OH(l, 26.0 ºC, 1.00 atm)  ⟶  CH3OH(g, 118.0 ºC, 1.00 atm) Assume that the volume of CH3OH(l) is much less than that of CH3OH(g) and that CH3OH(g) behaves as an ideal gas. Also, assume that the temperature of the surroundings is 118.0 ºC. Data: Molar heat capacity for CH3OH(l), Cp,m...

  • What is ΔHsys for a reaction at 16.2 °C with ΔSsurr = 389 J mol-1 K-1...

    What is ΔHsys for a reaction at 16.2 °C with ΔSsurr = 389 J mol-1 K-1 ? Express your answer in kJ mol-1 .

  • For the reaction below, determine the equilibrium partial pressure (in atm) of H2 at 714.10 K...

    For the reaction below, determine the equilibrium partial pressure (in atm) of H2 at 714.10 K if the initial pressure of HBr is 1.24 atm. Assume that ΔH and ΔS do not vary with temperature. Report your answer to three significant figures. LiH (s) + HBr (g) ⇌ LiBr (s) + H2 (g)   ΔHf° (kJ/mol)     S° (J mol-1 K-1) LiBr -351.20 74.30 H2 0.00 130.68 LiH -90.50 20.00 HBr -36.29 198.70

  • Estimate the value of the equilibrium constant at 610 KK for each of the following reactions....

    Estimate the value of the equilibrium constant at 610 KK for each of the following reactions. ΔG∘fΔGf∘ for BrCl(g)BrCl(g) is −−1.0 kJ/molkJ/mol. The standard molar entropy, S∘S∘, for BrCl(g)BrCl(g) is 240.0 J/mol⋅KJ/mol⋅K. Part A 2NO2(g)⇌N2O4(g).2NO2(g)⇌N2O4(g). ΔH∘fΔHf∘ for N2O4(g)N2O4(g) is 9.16 kJ/molkJ/mol. Express your answer using three significant figures. K= ??? Part B Br2(g)+Cl2(g)⇌2BrCl(g).Br2(g)+Cl2(g)⇌2BrCl(g). ΔH∘fΔHf∘ for BrCl(g)BrCl(g) is 14.6 kJ/molkJ/mol. Express your answer using three significant figures. K= ???

  • A reaction has a rate constant of 1.21×10−4 s−1 at 25 ∘C and 0.226 s−1 at...

    A reaction has a rate constant of 1.21×10−4 s−1 at 25 ∘C and 0.226 s−1 at 77 ∘C . Part A Determine the activation barrier for the reaction. Express your answer in units of kilojoules per mole and with 3 significant figures. Ea E a = nothing kJ/mol Request Answer Part B What is the value of the rate constant at 18 ∘C ? Express your answer in units of inverse seconds (s−1) and with 3 significant figures. k k...

  • a) Calculate the enthalpy of the reaction 2NO(g)+O2(g)→2NO2(g) given the following reactions and enthalpies of formation:...

    a) Calculate the enthalpy of the reaction 2NO(g)+O2(g)→2NO2(g) given the following reactions and enthalpies of formation: 12N2(g)+O2(g)→NO2(g), ΔfH∘A=33.2 kJ mol−1 12N2(g)+12O2(g)→NO(g), ΔfH∘B=90.2 kJ mol−1 Express your answer with the appropriate units. b) Calculate the enthalpy of the reaction 4B(s)+3O2(g)→2B2O3(s) given the following pertinent information: B2O3(s)+3H2O(g)→3O2(g)+B2H6(g), ΔrH∘A=+2035 kJ mol−1 2B(s)+3H2(g)→B2H6(g), ΔrH∘B=+36 kJ mol−1 H2(g)+12O2(g)→H2O(l), ΔrH∘C=−285 kJ mol−1 H2O(l)→H2O(g), ΔrH∘D=+44 kJ mol−1

  • Problem 18.65 Part A Review What is the final pressure of the gas? Express your answer...

    Problem 18.65 Part A Review What is the final pressure of the gas? Express your answer to two significant figures and include the appropriate units A container of gas at 2.7 atm pressure and 122 Cis compressed at constant temperalture until the volume is halved. It is then further compressed at constant pressure until the volume is halved again P Value Units Submit Request Answer ▼Part13 What is the final temperature of the gas? Express your answer using two significant...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT