Question

] Using the Arrhenius equation, determine the following effects on the rate of a reaction. Which...

] Using the Arrhenius equation, determine the following effects on the rate of a reaction. Which increase the rate, and which decrease the rate? (1) Increasing the temperature of the reaction (2) Increasing the activation energy of a reaction (3) Decreasing the temperature of the reaction (4) Adding a catalyst to the reaction

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Arrhenius equation is:

K = A*e^(-Ea/RT)

K is rate constant of reaction

1)

Increasing temperature will decrease Ea/RT which in turn will increase the value of K

Hence rate of reaction will increase

2)

increasing Ea will increase Ea/RT which in turn will decrease the value of K

Hence rate of reaction will decrease

3)

Decreasing temperature will increase Ea/RT which in turn will decrease the value of K

Hence rate of reaction will decrease

4)

Adding catalyst will decrease Ea.

decreasing Ea will decrease Ea/RT which in turn will increase the value of K

Hence rate of reaction will increase

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
± The Arrhenius Equation The Arrhenius equation shows the relationship between the rate constant k and...
± The Arrhenius Equation The Arrhenius equation shows the relationship between the rate constant k and the temperature T in kelvins and is typically written as k=Ae−Ea/RT where R is the gas constant (8.314 J/mol⋅K), A is a constant called the frequency factor, and Ea is the activation energy for the reaction. However, a more practical form of this equation is lnk2k1=EaR(1T1−1T2) which is mathmatically equivalent to lnk1k2=EaR(1T2−1T1) where k1 and k2 are the rate constants for a single reaction...
± The Arrhenius Equation The Arrhenius equation shows the relationship between the rate constant k and...
± The Arrhenius Equation The Arrhenius equation shows the relationship between the rate constant k and the temperature T in kelvins and is typically written as k=Ae−Ea/RT where R is the gas constant (8.314 J/mol⋅K), A is a constant called the frequency factor, and Eais the activation energy for the reaction. However, a more practical form of this equation is lnk2k1=EaR(1T1−1T2) which is mathmatically equivalent to lnk1k2=EaR(1T2−1T1) where k1 and k2 are the rate constants for a single reaction at...
The Arrhenius equation shows the relationship between the rate constant k and the temperature T in...
The Arrhenius equation shows the relationship between the rate constant k and the temperature T in kelvins and is typically written as k=Ae−Ea/RT where R is the gas constant (8.314 J/mol⋅K), A is a constant called the frequency factor, and Ea is the activation energy for the reaction. However, a more practical form of this equation is lnk2k1=EaR(1T1−1T2) which is mathmatically equivalent to lnk1k2=EaR(1T2−1T1) where k1 and k2 are the rate constants for a single reaction at two different absolute...
Explain why each change in conditions would affect the reaction rate of reaction when sodium metal...
Explain why each change in conditions would affect the reaction rate of reaction when sodium metal reacts with chlorine gas to form NaCl?  Pick A-E for questions 1-6. A. more collisions occur between the atoms B.fewer collisions occur between the atoms C.more collisions and more energy occur between the atoms D.fewer collisions and less energy occur between the atoms E.reduces the activation energy needed F.increases the activation energy needed 1. As the surface area of a molecule is increased the reaction...
The main reason for the increase in reaction rate with temperature is that possible Answers 1....
The main reason for the increase in reaction rate with temperature is that possible Answers 1. heat acts as a catalyst. 2. the activation energy increases rapidly with temperature. 3. a 10°C temperature rise results in the rate doubling. 4. there is a dramatic increase in the number of collisions. 5. the fraction of high-energy molecules increases exponentially with temperature.
Define the following terms: transition state and activation energy. On a molecular level, how does an...
Define the following terms: transition state and activation energy. On a molecular level, how does an increase in temperature lead to an increase in reaction rate? Give the Arrhenius equation. Show how the Arrhenius equation can be used to calculate the activation energy and pre-exponential factor.
A. The Arrhenius equation shows the relationship between the rate constant k and the temperature T...
A. The Arrhenius equation shows the relationship between the rate constant k and the temperature T in kelvins and is typically written as k=Ae−Ea/RT where R is the gas constant (8.314 J/mol⋅K), A is a constant called the frequency factor, and Ea is the activation energy for the reaction. However, a more practical form of this equation is lnk2k1=EaR(1T1−1T2) which is mathematically equivalent to lnk1k2=EaR(1T2−1T1) where k1 and k2 are the rate constants for a single reaction at two different...
The following reaction is at equilibrium: 2 Fe(OH)3(s) ↔ Fe2O3(s) + 3 H2O(g); Ho > 0....
The following reaction is at equilibrium: 2 Fe(OH)3(s) ↔ Fe2O3(s) + 3 H2O(g); Ho > 0. Which of the following changes will result in an increase in the concentration of water (gas)? a. Adding a catalyst. b. Increasing pressure. c. Removing some Fe(OH)3. d. Increasing the volume. e. Adding some Fe2O3. f. Decreasing the temperature.
The Arrhenius equation shows the relationship between the rate constant k and the temperature Tin kelvins...
The Arrhenius equation shows the relationship between the rate constant k and the temperature Tin kelvins and is typically written as k=Ae−Ea/RT where R is the gas constant (8.314 J/mol⋅K), Ais a constant called the frequency factor, and Ea is the activation energy for the reaction. However, a more practical form of this equation is lnk2k1=EaR(1T1−1T2) which is mathmatically equivalent to lnk1k2=EaR(1T2−1T1) where k1 and k2 are the rate constants for a single reaction at two different absolute temperatures (T1and...
The following data show the rate constant of a reaction measured at several different temperatures. Temperature...
The following data show the rate constant of a reaction measured at several different temperatures. Temperature (K) Rate Constant (1/s) 310 0.636 320 1.76 330 4.58 340 11.3 350 26.4 1. Use an Arrhenius plot to determine the activation barrier for the reaction. 2. Use an Arrhenius plot to determine the frequency factor for the reaction.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT