Question
Asked Dec 10, 2019
2 views

Calculate the heats of combustion for the following reactions. Use the standard enthalpies of formation.
 
(a) C2H4(g) + 3O2(g) → 2CO2(g) + 2H2O(l)

kJ/mol
 

(b) 2H2S(g) + 3O2(g) → 2H2O(l) + 2SO2(g)

kJ/mol
 

check_circle

Expert Answer

help_outline

Image Transcriptionclose

C,H + 30e) →2CO% + 2H,O, 4(g) -ΣΔΗ(produw is) - ΣΔΗ; (Reactants) ΔΗ reaction = (2*-393.5) +(2*-285.8)) -(52.26)– 3(0)) -1410.93 kJ / mol ΔΗ reaction

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Chemistry

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: What is the partial pressure of He in a 5.00-L vessel at 25°C that contains 0.0410 mole of He, 0.121...

A: The partial pressure of He, by using ideal gas equation as follows,

question_answer

Q: The glancing angle (θ) of a Bragg reflection (n = 1) from a set of crystal planes separated by 99.3 ...

A: Bragg equation relates that the wave length of X rays to the distance between atomic planes (d) and ...

question_answer

Q: Commercial lye is an alkaline mixture that contains mainly sodium hydroxide, but major impurities in...

A: The balanced reaction between lye (NaOH) and HCl is given as,

question_answer

Q: Is the value of K greater than I or less than I ? Explain using the equation involving K and Delta G...

A: The relationship between K and ∆G can be given by the following equation:

question_answer

Q: The enthalpy change for converting 10.0g of ice at -50.0 C to water at 50.0 C is ____ KJ. The specif...

A: Given information:Mass of ice = 10.0 gInitial temperature = -50.0 oCFinal temperature = 50.0 oCSpeci...

question_answer

Q: 8) Write two factors which affect rate of reaction according to collision theory?

A: Collision theory says that the chemical reaction takes place when the reacting particles collide eac...

question_answer

Q: The ∆Hfº of MgO is –602 kJ•mol‒1.  When 20.15 g MgO is decomposed at constant pressure according to ...

A: Given,ΔHf = -602 KJ/molMass of MgO = 2015 gMolar mass of MgO = 40.3044 g/mol

question_answer

Q: what are 2 incompatible elements? are calcium and chlorine incompatible?

A: Rubidium, Barium, Uranium, and Lanthanum are incompatible elements.

question_answer

Q: Enough of a monoprotic weak acid is dissolved in water to produce a 0.0164 M solution. The pH of the...

A: An acid dissociation constant which is denoted by ‘Ka’ can be defined as the quantitative measure of...