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
nekit [7.7K]
3 years ago
5

If the activation energy for a given compound is found to be 103 kJ/mol, with a frequency factor of 4.0 × 1013 s-1, what is the

rate constant for this reaction at 398 K?2.5 × 107 s-18.2 s-13.9 × 1010 s-11.2 s-11.7 × 1010 s-1
Chemistry
1 answer:
german3 years ago
6 0

Answer:

\large \boxed{\text{1.2 s}^ {-1}}

Explanation:

\begin{array}{rcl}k & = & Ae^{(-E_{a}/{RT)}}\\k & = & 4.0 \times 10^{13}\times e^{-(103000/{(8.314\times398))}}\\& = & 4.0 \times 10^{13}\times e^{-(103000/{3309)}}\\& = & 4.0 \times 10^{13}\times e^{-31.13}\\& = & 4.0 \times 10^{13}\times 3.130  \times 10^{-14}\\& = & \mathbf{1.2} \textbf{ s}^{\mathbf{-1}}\\\end{array}\\\text{The value of the rate constant is $\large \boxed{\textbf{1.2 s}^{\mathbf{-1}}}$}

You might be interested in
What is the formula for the carboxylic acid functional group?
boyakko [2]

Answer: C

Explanation:

This is a fact.

7 0
2 years ago
How do emulsifiers help oil and water to mix and not separate?
Olin [163]

Answer:

To prevent the mixture from separating substances called emulsifiers can be added. These help to form and stabilise the emulsions, preventing or slowing the water and fat/oil from separating. ... The hydrophilic end of the emulsifier molecule is attracted to the water and the hydrophobic end is attracted to the fat/oil.

3 0
3 years ago
Scientists are studying cold and dry environments on earth that are like the environment on Mars. What kind of prokaryotes do yo
FinnZ [79.3K]

The answer is; extremophiles

These organisms are found in places on earth that would be damaging to most life on earth. There are different categories of extremophiles depending on their environment. For example, those that live in the extreme cold (even below  150C ) are called Psychrophiles while Xerophiles live extreme desiccation.


7 0
3 years ago
Read 2 more answers
A student was given a mixture of iron of iron fillings and sulphur. He was told to heat it and observe the compound.
Fynjy0 [20]

Answer:

a) Black

b) Non-magnetic

c) No reaction with carbon disulphide.

d) i don't know sry

But i had to go through my 6th grade notes for this .____.

3 0
2 years ago
What gas comes off it
Andreyy89

Answer:

the answer to this question is hydrogen gas

6 0
3 years ago
Other questions:
  • Whats the difference between conduction, convection, radiation, biosphere, and geosphere
    12·1 answer
  • Explain what is meant by the term "excited state" as it applies to an electron. Is an electron in an excited state higher or low
    13·1 answer
  • A cylinder of lead has a radius of 4.0cm and a height of 10.0cm. What is the mass of the cylinder of lead?
    14·1 answer
  • I really need help with this!
    13·1 answer
  • Learning Goal:
    5·1 answer
  • If a piece of aluminum with a mass of 3.99 g and a temperature of 100.0 °C is dropped
    13·1 answer
  • How do I complete this column graph of the number of conductors vs the number of insulators
    11·1 answer
  • Hiiii everyone my previous account has been deleted who knows me plz follow​
    10·2 answers
  • Which emission causes the atomic number of a
    14·1 answer
  • Whats's the capital of ur mom?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!