# Search results

1. ### Reaction Rates

Homework Statement By what factor would the rate of a reaction for which the activation energy is 159 kJ be increased by a temperature rise of 10degreesC from 25 to 35degreesC? Homework Equations The Attempt at a Solution
2. ### Physical Chemistry Q

Homework Statement Calculate the vapour pressure of H2O(g) at 298K and an overall pressure of 1 atm., using the data provided. It cannot be assumed that dHvap and dSvap are independent of temperature. H2(g) dHcomb (298K) = -241.8kj/mol (H2(g) as a product)) Cp - 33.6 H2(g) dHcomb (298K) =...
3. ### Taylor Series

hmm.. confused
4. ### Taylor Series

Homework Statement Obtain the Taylor series in powers of x + 1 for f(x) = x/(2 + x), giving the general term. Homework Equations The Attempt at a Solution Wrote it out as x*(1/1-(-(x+1)).
5. ### Sum notation series math

I think you are missing a sum at the beginning of all of that .. but I still don't know how you would go about solving that!
6. ### Sum notation series math

What test should I try using?
7. ### Sum notation series math

Homework Statement Determine whether series diverges of converges (conditionally or absolutely) (1+2)/(1+3) + (1+2+4)/(1+3+9) + (1+2+4+8)/(1+3+9+27) ... Homework Equations The Attempt at a Solution I'm assuming that I would have to put it into sum notation but I am struggling with that.
8. ### Physical Chem Question

Don't I need to consider pressure? So I would use p1*v1/t1=p2*v2/t2. But I would need to be able to calculate pressure difference based on height? Any idea on how to do that?
9. ### Physical Chem Question

Homework Statement Calculate the factor by which the volume and the diameter of a balloon would increase as it rose from sea level and 20 degrees celsius to the stratosphere at 40km. Homework Equations PV=nRT The Attempt at a Solution I don't think I have enough information to solve?