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
bulgar [2K]
3 years ago
8

The activation energy for a given reaction is 56 kj/mol. at what temperature would the rate constant be quadruple what is was at

273k?
Chemistry
1 answer:
Alex787 [66]3 years ago
8 0

The rate equation is given as:

k = A e^(- Ea / RT)

 

Dividing state 1 and state 2:

k1/k2 = e^(- Ea / RT1) / e^(- Ea / RT2)

k1/k2 = e^[- Ea / RT1 - (- Ea / RT2)]

k1/k2 = e^[- Ea / RT1 + Ea / RT2)]

 

Taking the ln of both sides:

ln (k1/k2) = - Ea / RT1 + Ea / RT2

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

 

Since k2 = 4k1, therefore k1/k2 = ¼

 

ln (1/4) = [- (56,000 J/mol) / (8.314 J / mol K)] (1/273 K – 1/ T2)

2.058 x 10^-4 = 1/273 – 1/T2

T2 = 289.25 K

You might be interested in
Calculate the number of milligrams to 0.425 kg
sp2606 [1]

Answer:

Explanation:

as we know that 1kg =1,000,000 mg

therefore

0.425 kg= 0.425*1,000,000/1=425000

result:

0.425 kg contain 425000 mg

i hope this will help you

4 0
3 years ago
What can you say about the reactants of photosynthesis and the products of cellular respiration?
maks197457 [2]

Answer:

reactants of photosynthesis= carbon dioxide, water, and sunlight.

Products of cellular resperation= water and carbon dioxide and energy

Explanation:

4 0
2 years ago
What does the specific heat for a substance indicate? A. the heat released when 1 gram of the substance burns B. the amount of h
Viktor [21]
B. the amount of heat required to increase the temperature of 1 gram by 1oC
4 0
3 years ago
Read 2 more answers
Physical property of water at room temp
Galina-37 [17]
In nature, water exists in the liquid, solid, and gaseous states. It is in dynamic equilibrium between the liquid and gas states at 0 degrees Celsius and 1 atm of pressure. At room temperature (approximately 25 degrees Celsius), it is a tasteless, odorless, and colorless liquid.
6 0
4 years ago
A scientist is studying a shock wave from an earthquake. What kind of wave is being studying?
Naily [24]

Answer:

A scientist is studying a shock wave from an earthquake, he is studying mechanical wave.

Explanation:

The shock waves are experienced during earthquake. At the area of increased pressure shock wave are created as the object in that places moves faster as compared to the speed of sound. Shock wave are type of mechanical wave. For its transfer it requires a medium. An electromagnetic wave can travel of its own without any medium, under electromagnetic wave gamma ray and radio wave comes. they are transverse wave.

6 0
4 years ago
Read 2 more answers
Other questions:
  • What is part of meiosis but not of mitosis
    5·2 answers
  • Which of the following is the weakest of the attractive forces that bond atoms together?
    5·1 answer
  • In both physical and chemical changes,
    5·1 answer
  • Who is considered the father of atomic theory?
    13·2 answers
  • Please Help thank you
    14·1 answer
  • Given the ion C2O4-2, what species would you expect to form with each of the following ions?
    7·1 answer
  • Anyone wanna talk as as a date *^* , I'm not afraid to be out there lol, we can just talk ( girl, 14 XD, bi *^*) or just want to
    5·2 answers
  • What is the name of the ion that is O-2
    6·1 answer
  • Which of the following substances contain metallic bonds?
    7·1 answer
  • Please please please please please help I need to get this done please
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!