Question

For each of the following reactions, calculate ΔH∘rxn, ΔS∘rxn, ΔG∘rxn at 25 ∘C. State whether or...

For each of the following reactions, calculate ΔH∘rxn, ΔS∘rxn, ΔG∘rxn at 25 ∘C. State whether or not the reaction is spontaneous. If the reaction is not spontaneous, would a change in temperature make it spontaneous? If so, should the temperature be raised or lowered from 25 ∘C?

2NH3(g)→N2H4(g)+H2(g)

2KClO3(s)→2KCl(s)+3O2(g)

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

For a reaction to be spontaneous must be negative, in this light the second reaction with a negative is spontaneous.

For the first reaction, a positive value of indicate the reaction is nonspontaneous. is positive and is negative and hence the reaction is nonspontaneous at all temperature.

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
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?
For each calculate ∆Hrxn, ∆Srxn, and ∆Grxn, at 25 degrees celsius and state whether or not...
For each calculate ∆Hrxn, ∆Srxn, and ∆Grxn, at 25 degrees celsius and state whether or not the reaction is spontaneous. If it is not, would a change in temperature make it spontaneous? If so, what would the temperature change need to be? a. 2CH4 (g) --> C2H6 (g) + H2 (g) b. 2KClO3(s) --> 2KCl (s) + 3 O2 (g)
For each of the two reactions given below, calculate ∆H 0rxn , ∆ S0rxn , ∆T0rxn  ...
For each of the two reactions given below, calculate ∆H 0rxn , ∆ S0rxn , ∆T0rxn   at 250C, and state whether or not the reaction is spontaneous. If the reaction is non spontaneous , would a change in temperature make it spontaneous? If so, should the temperature be lowered or raised from 25 0C? ( Use the Appendix in Any Gen Chem Book) a) H2 ( g)   +     CO2 (g)   ------------>    H2O (g) + CO (g) b) 2 NH3 (g)...
Determine ΔS°rxn and ΔG°rxn at 298 K for each of the following reactions, and determine if...
Determine ΔS°rxn and ΔG°rxn at 298 K for each of the following reactions, and determine if it is spontaneous under these conditions. a. Ca( s ) + Cl2 ( g ) produces CaCl2 ( s ) b. 2C2H6 ( g ) + 7O2 ( g ) produces 4CO2 ( g ) + 6H2O( l ) c. SrCl2 ( s ) produces Sr (2+) ( aq ) + 2Cl (1–) ( aq )
Given the following data, calculate, ΔH rxn, ΔS rxn, and Δ rxn, at 25° C for...
Given the following data, calculate, ΔH rxn, ΔS rxn, and Δ rxn, at 25° C for the equilibrium describe by the chemical equation. What direction is the spontaneity of this system? Mg (s) +HCl (aq) <---> H2 (g) + MgCl2 (aq) Mg(s) HCl(aq) H2 (g) MgCl2(aq) ΔH°f (Kj/mol) 0 -167.2 0 -801.3 S°(J/(mol K) 130.7 56.5 32.7 -24.0
Calculate ΔGrxn at 35 ∘C. for the following reactions: 2CH4(g)→C2H6(g)+H2(g) 2NH3(g)→N2H4(g)+H2(g) N2(g)+O2(g)→2NO(g) 2KClO3(s)→2KCl(s)+3O2(g)
Calculate ΔGrxn at 35 ∘C. for the following reactions: 2CH4(g)→C2H6(g)+H2(g) 2NH3(g)→N2H4(g)+H2(g) N2(g)+O2(g)→2NO(g) 2KClO3(s)→2KCl(s)+3O2(g)
Given the values of ΔH∘rxn, ΔS∘rxn, and T below, determine ΔSuniv. Part A ΔH∘rxn= 115 kJ...
Given the values of ΔH∘rxn, ΔS∘rxn, and T below, determine ΔSuniv. Part A ΔH∘rxn= 115 kJ , ΔS∘rxn=− 263 J/K , T= 301 K . ΔSuniv= J/K SubmitMy AnswersGive Up Part B ΔH∘rxn=− 115 kJ , ΔS∘rxn= 263 J/K , T= 301 K . ΔSuniv= J/K SubmitMy AnswersGive Up Part C ΔH∘rxn=− 115 kJ , ΔS∘rxn=− 263 J/K , T= 301 K . ΔSuniv= J/K SubmitMy AnswersGive Up Part D ΔH∘rxn=− 115 kJ , ΔS∘rxn=− 263 J/K , T= 557...
Given the values of ΔH∘rxn, ΔS∘rxn, and T below, determine ΔSuniv. Part A ΔH∘rxn= 117 kJ...
Given the values of ΔH∘rxn, ΔS∘rxn, and T below, determine ΔSuniv. Part A ΔH∘rxn= 117 kJ , ΔS∘rxn=− 263 J/K , T= 291 K . ΔSuniv= −1.3•102 J/K SubmitMy AnswersGive Up Incorrect; Try Again; 3 attempts remaining Part B ΔH∘rxn=− 117 kJ , ΔS∘rxn= 263 J/K , T= 291 K . ΔSuniv= J/K SubmitMy AnswersGive Up Part C ΔH∘rxn=− 117 kJ , ΔS∘rxn=− 263 J/K , T= 291 K. ΔSuniv= J/K SubmitMy AnswersGive Up Part D ΔH∘rxn=− 117 kJ ,...
3)The following reaction, calculate ΔH∘rxn(in kJ), ΔS∘rxn(in J/K), and ΔG∘rxn(in kJ) at 25 ∘C. NH4Cl(s)→HCl(g)+NH3(g) 4)...
3)The following reaction, calculate ΔH∘rxn(in kJ), ΔS∘rxn(in J/K), and ΔG∘rxn(in kJ) at 25 ∘C. NH4Cl(s)→HCl(g)+NH3(g) 4) Electrons flow from right to left (anode to cathode). Anode=Cr(s) in 1M Cr3+ cathode= Fe(s) in 1M Fe3+. A salt bridge containing KNO3(aq) between the beakers. a) Write a balanced equation for the overall reaction. b)Calculate E∘cell. 5)Electrons flow from Right to left (anode to cathode). Anode=Ni(s) in Ni2+ cathode= Cd(s) in Cd2+ a)Indicate the half-reaction occurring at Anode and cathode b)Calculate the minimum...
Calculate the value of ΔG°, ΔH°, & ΔS° for the oxidation of solid elemental sulfur to...
Calculate the value of ΔG°, ΔH°, & ΔS° for the oxidation of solid elemental sulfur to gaseous sulfur trioxide at at 25°C. ​2S (s, rhombic) + 3O2( g) → 2SO3 (g)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT