Question

For which one of the following reactions will the enthalpy change be approximately equal to the...

For which one of the following reactions will the enthalpy change be approximately equal to the internal energy change ?

2 H2(g) + O2(g) → 2 H2O(ℓ)

H2O(ℓ) → H2O(g)

CaCO3(s) → CaO(s) + CO2(g)

H2(g) + Br2(g) → 2 HBr(aq)

CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g)

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

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
Given the following reactions and their associated enthalpy changes    CO2 (g) →      C (s) +...
Given the following reactions and their associated enthalpy changes    CO2 (g) →      C (s) + O2 (g)                          ΔH = 393.5 kJ C3H8 (g) + 5 O2 (g) →     3 CO2 (g) + 4 H2O (g)   ΔH = -2044 kJ     H2 (g) + 1/2 O2 (g) →        H2O (g)                     ΔH = -241.8 kJ calculate the enthalpy change for the following reaction: 4 H2 (g) + 3 C (s)→ C3H8 (g)
1) Calculate the change in enthalpy (in kJ) for the reaction using the Enthalpy tables in...
1) Calculate the change in enthalpy (in kJ) for the reaction using the Enthalpy tables in the back of your book. CaCO3(s)  CaO(s) + CO2(g) 2) 5. The combustion of ethane, C2H4, is an exothermic reaction. C2H4(g) + 3 O2(g)  2 CO2(g) + 2 H2O(l) ∆H = -1.39 x 103 J Calculate the amount of heat liberated when 4.79 g of C2H4 reacts with excess oxygen.
Calculate enthalpy, entropy, gibbs energy at 498C and 6 bar for following reactions: Ch4 + H2O...
Calculate enthalpy, entropy, gibbs energy at 498C and 6 bar for following reactions: Ch4 + H2O = CO + 3H2 CO + H2O = CO2 + H2 CH4 + 2H2O = CO2 + 4H2
ΔS is positive for which of the following reactions? A. 2 H2 (g) + O2 (g)...
ΔS is positive for which of the following reactions? A. 2 H2 (g) + O2 (g) --> 2 H2O (l) B. H2O (l) --> H2O (s) C. CO2 (s) --> CO2 (g) D. Ag+ (aq) + Cl- (aq) --> AgCl (s) E. N2 (g) + 3 H2 (g) --> 2 NH3 (g)
2) The volume of the system is increased for each of the following reactions below. Explain...
2) The volume of the system is increased for each of the following reactions below. Explain whether each system would shift forward, in reverse, or stay the same (no effect) and give brief explanation for your answer. (a) 2 SO2 (g) + O2 (g)2 SO3 (g) (b) H2 (g) + I2 (g)2HI (g) (c) CaCO3 (g)CaO (s) + CO2 (g) (d) Ag+ (aq) + Cl- (aq)AgCl (s)
5. Predict which of the following reactions has a negative entropy change. I. 2 HgO(s) →...
5. Predict which of the following reactions has a negative entropy change. I. 2 HgO(s) → 2 Hg(l) + O2(g) II. Ba2+(aq) + SO4 2-(aq) → BaSO4(s) III. 2H2O2(l) → 2 H2O(l) + O2(g) 6. Predict which of the following reactions has a negative entropy change. I. 2 SO2(g) + O2(g) → 2 SO3(g) II. MgO(s) + CO2(g) → MgCO3(s) III. PCl5(s) → PCl3(l) + Cl2(g)
Which of the following would an increase in pressure cause a shift in equilibrium that favors...
Which of the following would an increase in pressure cause a shift in equilibrium that favors reactants? Select one: a. CO2(g)+H2(g) ⇌CO(g)+H2O(g)CO2(g)+H2(g) ⇌CO(g)+H2O(g) b. CO(g) +12O2(g) ⇌CO2(g)CO(g) +12O2(g) ⇌CO2(g) c. 2Hg(l)+O2(g) ⇌2HgO(s)2Hg(l)+O2(g) ⇌2HgO(s) d. 2H2(g)+O2(g) 2H2O(l)2H2(g)+O2(g) 2H2O(l) e. CaCO3(s) ⇌CaO(s)+CO2(g)
Select the one equation shown below for which the enthalpy change is a heat of formattion....
Select the one equation shown below for which the enthalpy change is a heat of formattion. (a) H2 (g) +O2 (g) --->H2O2 (l) (b) H2 (g)+Br2(l)--->2HBr (g) (c) C2H4 (g)+H2(g) --->C2H6(g) (d) O2(g)+2F2(g)--->2OF2(g)
So I had to calculate the Gibbs Free energy for all the reactions: Ca(s)+CO2(g)+12O2(g)→CaCO3(s) = ΔG∘...
So I had to calculate the Gibbs Free energy for all the reactions: Ca(s)+CO2(g)+12O2(g)→CaCO3(s) = ΔG∘ = -734  kJ   CaCO3(s)→CaO(s)+CO2(g) = 131  kJ CO(g)+H2O(g)→H2(g)+CO2(g) = -28.6 KJ but now I have to predict what lowering the temeprature will do to Gibbs Free Energy: it will decrease with decreasing temp. ΔG∘ will increase with decreasing temperature. ΔG∘ will change slightly with decreasing temperature.
Calculate So values for the following reactions by using tabulated So values from Appendix C. (a)...
Calculate So values for the following reactions by using tabulated So values from Appendix C. (a) H2(g) + F2(g) 2 HF(g) So = -546.6 Incorrect: Your answer is incorrect. J/K (b) 2 CH4(g) C2H6(g) + H2(g) So = -12.3 Incorrect: Your answer is incorrect. J/K (c) CaCO3(s) CaO(s) + CO2(g) So = 160.5 Correct: Your answer is correct. J/K (d) Be(OH)2(s) BeO(s) + H2O(g) So = 156.80 Incorrect: Your answer is incorrect. J/K
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT