What Do You Know About Arrhenius Equation?

1. What does T represent?

Time

Temperature

Trigonometric function

T is a constant

T represents temperature.

Explanation

T represents temperature.

2. What does Ea represent?

Activation energy

Constant

Arrhenius value

Energy

Ea represents activation energy, which is the minimum amount of energy required for a chemical reaction to occur. It is the energy barrier that must be overcome for reactant molecules to transform into products. Activation energy determines the rate at which a reaction proceeds, with higher activation energy leading to slower reactions. This term is commonly used in the context of the Arrhenius equation, which relates the rate constant of a reaction to the activation energy and temperature.

Explanation

Ea represents activation energy, which is the minimum amount of energy required for a chemical reaction to occur. It is the energy barrier that must be overcome for reactant molecules to transform into products. Activation energy determines the rate at which a reaction proceeds, with higher activation energy leading to slower reactions. This term is commonly used in the context of the Arrhenius equation, which relates the rate constant of a reaction to the activation energy and temperature.

3. What does R represent?

Robert value

Pressure

Universal gas constant

Area

R represents the Universal gas constant. This constant is used in the ideal gas law equation to relate the pressure, volume, and temperature of a gas. It is denoted by the symbol R and has a value of 8.314 J/(mol·K). The Universal gas constant is an important constant in thermodynamics and is used in various calculations involving gases.

Explanation

R represents the Universal gas constant. This constant is used in the ideal gas law equation to relate the pressure, volume, and temperature of a gas. It is denoted by the symbol R and has a value of 8.314 J/(mol·K). The Universal gas constant is an important constant in thermodynamics and is used in various calculations involving gases.

4. In logarithmic form, how is the equation written?

Ln k = ln A - Ea/RT

Ln k = ln A - Ea*RT

Ln A = ln k - Ea/RT

Ln A = ln k - Ea*RT

The equation is written in logarithmic form as ln k = ln A - Ea/RT. This form represents the natural logarithm of the rate constant (ln k) being equal to the natural logarithm of the pre-exponential factor (ln A) minus the activation energy (Ea) divided by the gas constant (R) multiplied by the temperature (T).

Explanation

The equation is written in logarithmic form as ln k = ln A - Ea/RT. This form represents the natural logarithm of the rate constant (ln k) being equal to the natural logarithm of the pre-exponential factor (ln A) minus the activation energy (Ea) divided by the gas constant (R) multiplied by the temperature (T).

5. What is the formula for Arrhenius equation?

K=A*exp (-E a*R*T)

K=A*exp (-E a/T*R)

K=A*exp (-E a/R*T)

K=A*exp (E a/R*T)

The Arrhenius equation is used to describe the temperature dependence of reaction rates. It states that the rate constant (k) of a reaction is equal to the pre-exponential factor (A) multiplied by the exponential term, which is given by exp (-Ea/RT), where Ea is the activation energy, R is the gas constant, and T is the temperature in Kelvin. Therefore, the correct formula for the Arrhenius equation is k = A*exp (-Ea/RT).

Explanation

The Arrhenius equation is used to describe the temperature dependence of reaction rates. It states that the rate constant (k) of a reaction is equal to the pre-exponential factor (A) multiplied by the exponential term, which is given by exp (-Ea/RT), where Ea is the activation energy, R is the gas constant, and T is the temperature in Kelvin. Therefore, the correct formula for the Arrhenius equation is k = A*exp (-Ea/RT).

6. What does k represent?

Rate coefficient

Kepler rate

Rate of the equation

Kelvin value

The correct answer is "Rate coefficient". In chemical kinetics, the rate coefficient (k) represents the proportionality constant between the rate of a reaction and the concentrations of the reactants. It determines the speed at which a reaction takes place and is specific to each reaction. The rate coefficient is determined experimentally and is influenced by factors such as temperature, pressure, and catalysts.

Explanation

The correct answer is "Rate coefficient". In chemical kinetics, the rate coefficient (k) represents the proportionality constant between the rate of a reaction and the concentrations of the reactants. It determines the speed at which a reaction takes place and is specific to each reaction. The rate coefficient is determined experimentally and is influenced by factors such as temperature, pressure, and catalysts.

7. When was the equation proposed?

1888

1889

1990

1991

The equation was proposed in 1889.

Explanation

The equation was proposed in 1889.

8. What is the value of R?

8.314 x 10^-1 kJmol^-1K^-1

8.314 x 10^-2 kJmol^-1K^-1

8.314 x 10^-3 kJmol^-1K^-1

8.314 x 10^-4 kJmol^-1K^-1

The value of R is 8.314 x 10^-3 kJmol^-1K^-1.

Explanation

The value of R is 8.314 x 10^-3 kJmol^-1K^-1.

9. Who proposed the equation?

Steven Arrhenius

Svante Arrhenius

Steph Arrhenius

Pat Arrhenius

Svante Arrhenius proposed the equation.

Explanation

Svante Arrhenius proposed the equation.

10. What does A represent?

Arrhenius value

Archimedes principle

Constant

Area

The correct answer is "Constant." A represents a constant value, which means it does not change. It is not related to Arrhenius value, Archimedes principle, or area. A constant can be used in various mathematical equations and formulas to represent a fixed value that remains unchanged throughout the calculation.

Explanation

The correct answer is "Constant." A represents a constant value, which means it does not change. It is not related to Arrhenius value, Archimedes principle, or area. A constant can be used in various mathematical equations and formulas to represent a fixed value that remains unchanged throughout the calculation.