Saturday

July 26, 2014

July 26, 2014

Posted by **Chloe** on Tuesday, April 30, 2013 at 1:25am.

Thank you!

Chemistry - DrBob222, Tuesday, April 30, 2013 at 12:31am

dG = dHvap - TdSvap

dG at boiling point = 0; therefore,

dHvap = TdSvap

You know dHvap and dSvap, solve for T. Check to make sure you typed the problem correctly. Check that dSvap is really in kJ/mol (or is it J/mol instead).

T will be in kelvin, convert to C.

- DrBob222,

The dSvap is J/(k*mol). I subtract the dHvap and dSvap, I got 44 Kelvin then I convert it to celsius 229.15 C. My final answer doesn't seems right. Help me please!

- Chemistry -
**DrBob222**, Tuesday, April 30, 2013 at 3:49pmWhat did you subtract? I don't see a subtraction anywhere in the problem except for conversion of K to C.

dG = dH - TdS

0 = dH - TdS

dH = TdS

31300 = T*79.7

T = 31300/79.7

T = ? K

C = ?K-273.15 = ?

- Chemistry -
**Chloe**, Tuesday, April 30, 2013 at 3:57pmI realized where I made a mistake for this problem. This time, I got this one right.

Thank you so much!

**Related Questions**

Chemistry - The following thermodynamic data was obtained for an unknown ...

chemistry - Using data in table below and S °(C2H6(g))= 229.5 J·mol-1·K-1, ...

Chemistry - Using the following data calculate Delta Sfus and Delta Svap for K ...

CHEMISTRY!! NEED IMMEDIATE HELP PLEASE!!! - a. Calculate the delta H, delta G, ...

ap chemistry - A 4.47 g sample of a molecular compound is dissolved in 96 g of ...

Chemistry II - Saw this one already answered, but did not understand at all... ...

Chemistry - DrBob222, I don't know how to solve this problem either. And yes, ...

chemistry - Given the data below, determine the normal boiling point of COCl2. ...

chemistry - use the following data, as appropriate, to estimate the molarity of ...

chemistry - use the following data, as appropriate, to estimate the molarity of ...