CHEMISTRY COMMUNITY

Phi Phi Do 2E

When deriving the Arrhenius equation do we use k1/k2 or k2/k1?

Phi Phi Do 2E

no we don't

Phi Phi Do 2E

Should we study the exponential form of the first order rate law?

Phi Phi Do 2E

enzymes generally lower the activation energy because it would decrease the energy barrier that needs to be overcome in order for the reaction to begin. Thehrefore, because enzymes increase reaction rate, the activation energy is lowered for it to do so.

Phi Phi Do 2E

What are the main differences between the steady state and pre-equilibrium approaches?

Phi Phi Do 2E

Does the number of activation energy barriers relate to the reaction order?

Phi Phi Do 2E

yes, order does matter when you are solving for k. That is why the units differ for the k value in each rate order.

Phi Phi Do 2E

Why is the constant K in different units depending on the rate order?

Phi Phi Do 2E

How does finding the half life of a reaction correlate to the rate order?

Phi Phi Do 2E

E of a redox is an intensive property meaning that it does not matter the size or amount of material so there is no need to multiply it to another number.

Phi Phi Do 2E

To calculate oxidation state in half reactions. Do we have to multiply the charges by the coefficient to find the total oxidation state?

Phi Phi Do 2E

How do I calculate reducing power and what is the concept behind it? Does it have anything to do with electronegativity?

Phi Phi Do 2E

How is cell potential related to Gibbs free energy?

Phi Phi Do 2E

What is the concept behind the oxidation number?

Phi Phi Do 2E

Why is Kb the same as the R constant in the entropy equation?

Phi Phi Do 2E

This is because you are adding the average enthalpies within the bonds. Therefore, when you add up the total enthalpies, it is slightly inaccurate.

Phi Phi Do 2E

Entropy can increase when molecules are broken down.

Phi Phi Do 2E

What is the main difference between entropy and degeneracy?

Phi Phi Do 2E

Can someone please explain more about the concept of degeneracy and how that relates to entropy?

Phi Phi Do 2E

Condensation is an exothermic reaction because heat is being released during the phase change from a gas to liquid.

Phi Phi Do 2E

Why is the universe an isolated system?

Phi Phi Do 2E

PV is also negative because as work is being done by the system, it is losing energy.

Phi Phi Do 2E

The zeroeth Law of Thermodynamics states that heat flows from the hotter object to the cooler object. When it is flowing from one object to another, it flows from the system to the surroundings. When releasing heat, it is an exothermic process which is a negative value and so you would use the q(sys...

Phi Phi Do 2E

How do you differentiate molar heat capacity from specific heat capacity?

Phi Phi Do 2E

You only need to change the sign because the destinations are reversed now. Point B goes back to point A as opposed to the forward reaction. This only causes a sign change because enthalpy is a state function and only depends on the state of the reaction and disregards the path.

Phi Phi Do 2E

How can you determine an element's standard state? Do the bond formations and formal charges contribute?

Phi Phi Do 2E

Can somebody explain to me more about the concept of sublimation?

CHEMISTRY COMMUNITY

Search found 27 matches

Arrhenius Equation

Re: Final-Collision Theory

Exponential

Re: Enzymes

steady state vs. equilibrium

Activation Energies

Re: Half life constant and Rate reaction constant

k units [ENDORSED]

Half life and rate order

Re: E of a Redox [ENDORSED]

Oxidation state

reducing power?

Cell potential

Oxidation

Entropy

Re: Enthalpy calculated from Bonds vs Enthalpy of formation

Re: Entropy [ENDORSED]

entropy vs. Degeneracy

degeneracy [ENDORSED]

Re: Endothermic or Exothermic

The universe

Re: Enthalpy

Re: q(sys) = -q(surr)

Heat Capacities

Re: reaction enthalpies

Standard State

Sublimation