Recent content by chemnoob.

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

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) =...

hmm.. confused

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)).

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!

What test should I try using?

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.

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?

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?