Recent content by ab94

I think I solved my mistake, I'm not supposed to divide by T at the end, I need to do it for each step. So q1= -101610J/373.15K = -272.3J/K q2= 45gx4.2J/K/g x ln(273.15K/373.15K) = -58.96J/K q3= -15030J/273.15K = -55.02J/K Total Change in Entropy= -386.3J/K

Homework Statement 45g of H2O(g) are condensed at 100 degrees C, and H2O(l) is cooled to 0 degrees C and then frozen to H2O solid. Find the Change in Entropy H2O(l): 4.2 J K-1g-1 vaporization at 100 degrees C: 2258 J g-1; fusion at 0 degrees C: 334 J g Homework Equations dS=dq/TThe...

Homework Statement The Xolo is the national dog of Mexico. The striking characteristic of this dog is that it has no hair. Xolos carry a mutation in Chromosome 17 that, when homozygous, is lethal. If two hairless Xolos were mated, what fraction of their surviving offspring would be...

The pressure would also double?

Homework Statement For example in the problem if we have a volume of 10L at 15 degrees Celsius, and there is initially 100Pascals pressure, what would the final pressure be if we double the Internal Energy? Homework Equations U=3/2nRT The Attempt at a Solution I though pressure was...

Nvm I got the right answer, I used wolframalpha and I subtracted my answer from theirs, and got 0. (i fixed my own error up there ^) Thanks for the help

Ok so: ln(y)= ln(p^x^p) + ln(x^p) ln(y)=(x^p)ln(p) + (p)ln(x) 1/y y'= (px^(p-1))ln(p) + (x^p)/p + 0 + p/x therfore y'= p^x^p(x^p)(px^(p-1))ln(p) + (x^p)/p + + p/x Is this correct? or is there an error

Ohh thanks, I was taking the highest exponent (p) instead of the entire exponent (xp). I'll post my solution after I work it out

so then would I split up the ln's into ln(y)=ln(p^x^p) + ln(x^p) ? If so I ended with y' = p^x^p(x^p) (plogp + p/x) ...don't think that's right

Yes, that's what it is. So I can't take ln of both sides and say ln(y)=ln(p^x^p) ln(y)= pln(p^x) ? I thought We could bring down exponents when using that ln property.

Homework Statement Find dy/dx of this: Assume p>0, y=(p^(x^p))(x^p) Homework Equations 1. d/dx f(x)g(x)h(x) = f'(x)g(x)h(x)+f(x)g'(x)h(x)+f(x)g(x)h'(x) The Attempt at a Solution ln(y)= p(ln(p^x))x^p 1/y y'=p'(ln(p^x))x^p + p(logp)x^p + p(ln(p^x))px^(p-1) --use "revlevent"...