Recent content by S_Flaherty

Homework Statement The vectors r1 and r2 below represent atomic positions in a crystal. r1 = (n1 + n3)ax + (n2 + n3)ay + n3az r2 = (n1 + n3 + 1/2)ax + (n2 + n3 1/2)ay + (n3 + 1/2)az Assume first that the two vectors above correspond to two different types of atom. Find a set of...

Thanks!, this helps a lot

Homework Statement Consider the electromagnetic radiation inside a kiln, with a volume of 1 m3 and a temperature of 1500 K. Calculate the radiation pressure inside the kiln. How does it compare with the air pressure? Homework Equations PV = NkT The Attempt at a Solution I got...

I used a graphing method and got that the work done is 0.21NkTo, but I guess that is incorrect because I tried CvΔT and got 0.58NkTo. I use the change in temp of the right side right?

I have another question, would the work done on the right side just be W = -2P(0.583Vo - Vo) or would I have to do something else with the pressure since it increases to 2P instead of being 2P the whole time?

Thanks so much for your help

I see what I did wrong, so for the left V = 2V0 - Vright = 1.417V0 so T = 2.834T0

Ok, so V = V0/27/9 which means T = 22/9T0 for the right side? And from this Vleft = V0(2 - 27/9) and Tleft = 211/9T0 ?

How do I get the constant to be in terms I can use?

The final pressure is just 2P so 2NkT0/V0 and for adiabatic compression isn't Vf(Tf)7/2 = V0(T0)7/2 ?

The pressure of each side at first is P = NkT0/V0. The pressure has to be equal on both sides for the piston to stop moving right? So after the piston moves each side has a pressure of 2P. I'm not sure how to get the volume of the left side in terms of V and V0.

Homework Statement A cylinder is closed at both ends and has thermally insulating walls. It is divided into 2 parts (left and right) by a movable, frictionless, thermally insulating piston. There is a heating coil in the left compartment, and there are N molecules of an ideal gas, with heat...

Over 250 people view this and no one answers? You all sure are helpful...

Anyone?

Homework Statement There is a solid that can be in two phases, with energies U1(S,V) = S2/a1 + b1V(V-2Vo) and U2(S,V) = S2/a2 + b2V(V-2Vo). Consider a phase transition between the two phases at zero pressure. At what temperature, T0, does it occur? Homework Equations T = ∂G/∂S...