1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kamila [148]
3 years ago
9

Where possible, classify these systems as reactant-favored or product-favored at 298 K. If the direction cannot be determined fr

om the information given, classify the reaction as "Insufficient information".
a)2A(g) + 3B(g) -->4C(g) delta H = -95kJ b)2A(g) + 2B(g) -->3C(g) delta H = 254kJ c)2A(g) + B(g) --> 4C(g) delta H =322 kJ d)2A(g) + B(g) --> 3C(g) delta H -193kJ I thought that a)reactant favored, b) reactant favored, c) product favored, and d) insufficient information because that in a and b there are more reactant than products and in c there are more products than reactant and d is equal amount. But I got the answer wrong. Could someone explain to me?
Chemistry
2 answers:
AveGali [126]3 years ago
5 0

Reactant Favored - If there are more reactants than products then the reaction is reactants favored.


Product Favored - If there are more products than reactants after the reaction is completed then it is product favored.


Answer 1) Reactant favored



Explanation : 2A_{(g)} +3 B_{(g)}----> 4C_{(g)} ΔH = -95 KJ


It is easily observed that the reactant has 5 moles in total whereas the product has only 4 moles. There fore, the number of reactant is more than the products. Hence, it is reactant favored reaction.


Answer 2) Reactant favored


Explanation : 2A_{(g)}+ 2B_{(g)}---> 3C_{(g)} ΔH = 254 KJ.


The total number of moles in reactant side are 2+2 =4 and in products side it has 3 moles only. This shows that products has less moles than reactants, and hence it is reactant favored reaction.


Answer 3) Product favoured


Explanation : 2A_{(g)}+B_{(g)}---> 4C_{(g)} Δ H = 322 KJ


The total number of moles in reactant are 3=2+1=3 and the number of moles in products is 4. Which shoes that the number of moles in products is more than the reactants. This shows that it is product favored.


Answer 4) Product favored


Explanation : 2A_{(g)}+B_{(g)}----> 3C_{(g)}  ΔH = -193 KJ

This is a product favored reaction as there are equal number of moles which are formed from reactants to products which is 3. But in this case, we can consider the ΔH is negative which is -193 KJ which shows that the reaction is product favored. And it shows that it is spontaneous in nature.

ki77a [65]3 years ago
3 0
The best and the most correct answer among the choices provided by the question is the first choice. The reaction is determined as reactant favored. I hope my answer has come to your help. God bless and have a nice day ahead! Feel free to ask more questions.
You might be interested in
If 25.5g of sodium thiosulphate was dissolved in 40g of distilled water at 25°C,
zhenek [66]

Answer:

Formula: Na2S2O3

we get solubility.

Divide the mass of the compound by the mass of the solvent and then multiply by 100 g to calculate the solubility in g/100g .

Solution given:

mass of sodium thiosulphate [m1]=25.5g

mass of water [m2]=40g

at temperature [t]=25°C

we have

<u>solubility in g/dm^3</u> :\frac{solute in gram}{solvent in gram} *100

  • =\frac{25.5}{40}*100
  • =63.75g /litre=63.75g/dm³

<u>solubility in g/dm^3 :63.75g/dm³</u>

<u>n</u><u>o</u><u>w</u>

solubility of the solute in mol/dm^3=:63.75g/dm³/178=0.4 mol/dm³

6 0
3 years ago
The combination of all frequencies of visible light makes
sashaice [31]

Answer:The visible light contains 7 colours  :  Violet, indigo, Blue, Green, Yellow, Orange and Red.

White colour is formed by the interference of all 7 colours, thus white light has the combination of all frequencies of visible light.

Explanation:

3 0
3 years ago
How much energy is transferred from a plant to an herbivore that eats it? A. 5% B. 10% C. 20% D. 90%
Tema [17]

Answer:

B. 10%

Explanation:

6 0
3 years ago
Why is Mm02 called manganese (IV) oxide?
Minchanka [31]

Answer:

MnO2 M n O 2 is an ionic substance without any oxo-anions, therefore its name has the -ide ending.

5 0
3 years ago
A 1.000 gram sample of an alcohol was burned in oxygen to produce 1.913 g of CO2 and 1.174 g of H20. The alcohol contained only
ycow [4]
The formula of alcohol are
1.913 g CO2/44 = 0.043 moles of CO2*12 = 0.043 moles of C 1.174 gram H2O/18 = 0.065 moles of H.
O: 1 - 0.516 g C - 13 g H = 0.354 g O/16 = 0.022 moles of O.
we have 0.043:0.130.;0.022 as C:H:O. Diving by the smallest no. 0.022 we get 1.95:5.9:1 or 2:6:1 as C:H:O.

hope this help 
4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the oxidation number of iodine in KIO4?(1) +1 (3) +7(2) -1 (4) - 7
    6·1 answer
  • What's the definition if blood
    7·1 answer
  • Which is TRUE of the products in this combustion reaction? 4Fe + 3O2 2Fe2O3
    14·2 answers
  • HNO3 Express your answers as ions separated by a comma.
    7·1 answer
  • We call the elements in the blocks of periods 4-7 and groups 3-12 the
    13·1 answer
  • What electrostatic attraction between____ forms an ionic bond?
    10·1 answer
  • which best describes an element? - a pure substance - a type of a mixture - a pure compound - an impure substance
    10·2 answers
  • Is the speed on this graph increasing or constant?
    12·2 answers
  • Sodium benzoate, the sodium salt of benzoic acid, is used as a food preservative. A sample containing solid sodium benzoate mixe
    11·1 answer
  • What is khasra record? What it tells?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!