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
levacccp [35]
3 years ago
7

Which statement is a valid conclusion about the activation energy of the reverse reaction if the forward reaction is exothermic?

Chemistry
1 answer:
babunello [35]3 years ago
4 0

Answer:

e) The activation energy of the reverse reaction is greater than that of the forward reaction.

Explanation:

  • Activation energy is the minimum amount of energy that is required by the reactants to start a reaction.
  • An exothermic reaction is a reaction that releases heat energy to the surrounding while an endothermic reactions is a reaction that absorbs heat from the surrounding.
  • <em><u>In reversible reactions, when the forward reaction is exothermic it means the reverse reaction will be endothermic, therefore the reverse reaction will have a higher activation energy than the forward reaction.</u></em> The activation energy of the reverse reaction will be the sum of the enthalpy and the activation energy of the forward reaction.
You might be interested in
A first order reaction has a rate constant of 0.543 at 25 c and 6.47 at 47
alukav5142 [94]

The activation energy Ea can be related to rate constant (k) at temperature (T) through the equation:

ln(k2/k1) = Ea/R[1/T1 - 1/T2]

where :

k1 is the rate constant at temperature T1

k2 is the rate constant at temperature T2

R = gas constant = 8.314 J/K-mol

Given data:

k1 = 0.543 s-1; T1 = 25 C = 25+273 = 298 K

k2 = 6.47 s-1; T = 47 C = 47+273 = 320 K

ln(6.47/0.543) = Ea/8.314 [1/298 - 1/320]

2.478 = 2.774 *10^-5 Ea

Ea = 0.8934*10^5 J = 89.3 kJ

5 0
2 years ago
What reaction will take place if h2o is added to a mixture of nanh2/nh3? draw the products of the reaction (without sodium ion)?
Maru [420]

When sodium amide i.e.NaNH_{2} reacts with water i.e. H_{2}O results in the formation of sodium hydroxide i.e. NaOH and ammonia NH_{3}.

The chemical reaction is given by:

NaNH_{2}+H_{2}O\rightarrow NH_{3}+NaOH

Now, when ammonia i.e.NH_{3} reacts with water results in the formation of ammonium hydroxide i.e. NH_{4}OH

The chemical reaction is given by:

NH_{3}+H_{2}O\rightarrow NH_4OH

Thus, the products of the above reactions are ammonia and ammonium hydroxide (without sodium ion).

The structures of the products are shown in figure (1): ammonium hydroxide and figure (2) ammonia.


8 0
3 years ago
[11]. Of these four liquids, which is the most viscous?
-Dominant- [34]
The most viscous among the choices is D. Honey at room temperature.

Viscosities of liquids typically vary with temperature. The higher the temperature, the lower the viscosity. Among the choices, only motor oil and honey appear to be the most viscous. The clue that helps determined the answer are the words "hot" and "room temperature". Hot motor oil is less viscous, while honey at room temperature is more viscous. Even comparing their viscosities at room temperature, honey already has a higher viscosity than motor oil.
6 0
3 years ago
Does listening to music when you study increase your test scores? What is the independent variable?
guajiro [1.7K]

Answer:

It can you just have to find a song that get's stuck in your head and try replacing the studing answer with the song because then the answer will get stuck in your head.

Explanation:

5 0
3 years ago
Read 2 more answers
The diagram below represents a sodium atom bonding to a chlorine atom to form sodium chlorine.
Sergio [31]
Sodium Chloride is a compound.
8 0
3 years ago
Other questions:
  • The atomic mass of an element is equal to the number of
    12·1 answer
  • When parallel light rays exit a concave lens,the light ray is?
    5·2 answers
  • What is the correct interpretation of the mole ratios for the elements in
    10·1 answer
  • Write molecular, complete ionic, and net ionic equations for the reactions that occur, if any, when solutions of the following s
    8·1 answer
  • Two students measure the time it takes for a race to finish . One student measured 75.5 seconds . The other student measures 1 m
    15·1 answer
  • In an atomic model that includes a nucleus, positive charge is
    15·1 answer
  • It take 38.70cm³ of 1.90 NaO4 to neutralize 10.30cm³ of H2So4 in a battery. Calculate the molar concentration of H2So4
    6·1 answer
  • Which pair of elements would most likely combine to form a salt? I and F Cs and I Na and C N and F
    6·1 answer
  • A reaction takes place between an acid and 0.5 gram of solid magnesium ribbon. Another reaction takes place between an acid and
    10·1 answer
  • A student performs a magic trick for their science classroom. They place clear Orbeezes inside a glass of water and the Orbeezes
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!