CHEMISTRY COMMUNITY

Samantha Jimenez 4k

specific heat capacity is an intensive property and not the other way around for that reason.

Samantha Jimenez 4k

"Increasing the concentration of a reactant increases the rate of a reaction by increasing the rate constant in the forward direction"
Would this statement be false?? If so, could someone explain why that is?

Samantha Jimenez 4k

For a reaction with a very large equilibrium constant, would the rate constant of the forward reaction be much larger than the rate constant of the reverse reaction?

Samantha Jimenez 4k

At equilibrium, would the rate constants of the forward and reverse reactions be equal?

Samantha Jimenez 4k

Could you give an example as to how we would use the orders from the elementary steps to get the molecularity?

Samantha Jimenez 4k

could you clarify what you mean by overall order? so can we avoid the elementary steps and just look at the overall order if it is given?

Samantha Jimenez 4k

In my notes, I have that the molecularity is based on the number of species in an elementary step but would it be different if the order of those individual species was something other than 1?

Samantha Jimenez 4k

so what exactly is k' and how is it used to find the overall k?

Samantha Jimenez 4k

How would we find the activation energy, given both rate constants and temperatures?

Samantha Jimenez 4k

For one of the homework problems, it gives the elementary steps and asks what the reaction intermediate is, what exactly would this be?

Samantha Jimenez 4k

you have to take the half-life to the 4th power

Samantha Jimenez 4k

to find the initial reaction rate, you would just multiply the molarity of all the reactants times the k that they provided.

Samantha Jimenez 4k

Could someone explain a bit more the concept of max potential and how that gives you the cell potential? I'm confused as to how they relate.

Samantha Jimenez 4k

Why is it that metals are better conductors of electricity????

Samantha Jimenez 4k

For one of the homework problems, it asks to rank metals of increasing strength of reducing agent. How would we go about answering these type of questions?

Samantha Jimenez 4k

Could a reaction have a negative delta g and favor reactants or would it always favor the products?

Samantha Jimenez 4k

What would be the units of Gibbs Free energy?

Samantha Jimenez 4k

9.53 Calculate the change in molar Gibbs free energy for the process NH3(l) S NH3(g) at 1 atm and (a) 15.0 C; (b) 45. C (see Tables 8.3 and 9.1). In each case, indicate whether vaporization would be spontaneous. I'm confused as to how would we approach this question? Would we just be getting values ...

Samantha Jimenez 4k

Still confused as to why specific heat capacity is intensive if the equation includes moles. Could someone explain this?

Samantha Jimenez 4k

9.5 What is the total entropy change of a process in which 40.0 kJ of energy is transferred as heat from a large reservoir at 800. K to one at 200. K?

For this question, would we just be finding the change in entropies for each and then adding them together?

Samantha Jimenez 4k

A piston confines 0.200 mol Ne(g) in 1.20 L at 25 C. Two experiments are performed. (a) The gas is allowed to expand through an additional 1.20 L against a constant pressure of 1.00 atm. (b) The gas is allowed to expand reversibly and isothermally to the same final volume. Which process does more wo...

Samantha Jimenez 4k

A gas sample in a cylinder is supplied with 524 kJ of energy as heat. At the same time, a piston compresses the gas, doing 340 kJ of work. What is the change in internal energy of the gas during this process? For this problem is the 524kJ the initial energy and the 340kJ just the change? so would th...

Samantha Jimenez 4k

can anybody help me understand what type of system would a bomb calorimeter in which benzene is burned would be?

Samantha Jimenez 4k

The standard enthalpy is the standard heat/energy required to form one mole of a substance in its most stable form and that value is zero which makes sense because its already in its most stable form.

Samantha Jimenez 4k

Could someone explain how graphite is the most stable form of carbon?

Samantha Jimenez 4k

If I'm right, I believe most reactions are given in their standard state

Samantha Jimenez 4k

So I'm still pretty confused as to when we should know when x can be disregarded in the denominator for the quadratic equation in an ICE problem. Is it safer to just never disregard it, or are there exceptions when it is acceptable?

Samantha Jimenez 4k

X is the change in concentration from reactants to products, thus, the reactant's end concentration would be its initial-change(which is x), the products, on the other hand, are just x since they are equal to the change in concentration from the reactant.

Samantha Jimenez 4k

When constructing the ICE table, if there is a coefficient in front of the products, do we include that number in the quadratic, or solve for x and then multiply it by the coefficient afterward?

CHEMISTRY COMMUNITY

Search found 29 matches

Re: Specific Heat Capacity and Heat Capacity

rate constant

Rate constant for large equilibrium constant

Rate constants at equilibrium

Re: Molecularity

Re: Molecularity

Molecularity

k'

activation energy

reaction intermediate

Re: First Order vs Second Order Reaction Half- Life

Re: Question 13 6th Edition

Max Potential

Metals

Strength of reducing agent

Gibbs Free Energy and Spontaneity

Units of Delta G

9.53 Homework Problem

Specific Heat capacity

HW Problem 9.5

HW 8.11 part b

HW problem 8.5

8.1 part c

Re: Standard enthalpy of formation

Stable carbon

Re: An element's standard state

When is X negligible.

Re: ICE

ICE table