Question

The vapor pressure of ethanol is 115 torr at 34.9°C. If ΔHvap of ethanol is 38.6...

The vapor pressure of ethanol is 115 torr at 34.9°C. If ΔHvap of ethanol is 38.6 kJ/mol, calculate the temperature (in °C) when the vapor pressure is 760 torr.

When I plug everything in I get 1.888 = -4640 *(1/t2-3.247*10^-3) but my algebra is rusty and I don't get the same answer as the book. A detailed explanation would be greatly appreciated. Thanks!

lnP2/P1= -Hvap/R*(1/t2-1/t)

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
The vapor pressure of ethanol is 115 torr at 34.9°C. If ΔHvap of ethanol is 38.6...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • The vapor pressure of ethanol is 115 torr at 34.9 oC and ΔHvap of ethanol is...

    The vapor pressure of ethanol is 115 torr at 34.9 oC and ΔHvap of ethanol is 38.6 kJ/mol, use this information and the Clausius-Clapeyron equation (shown below) to calculate the temperature in oC at which the vapor pressure is 760 torr (remember to convert temperatures to K in the equation (K = oC + 273). R = 8.314 J/mol·K. ( Please show each step, step BY step) I am having difficult with finding T2

  • The vapor pressure of a substance is 760.0 torr at 115°C and 14.6 torr at 45°C....

    The vapor pressure of a substance is 760.0 torr at 115°C and 14.6 torr at 45°C. What is ΔHvap of the substance?

  • a.) The vapor pressure of ethanol is 1.00 × 102 mmHg at 34.90°C. What is its...

    a.) The vapor pressure of ethanol is 1.00 × 102 mmHg at 34.90°C. What is its vapor pressure at 55.7°C? (ΔHvap for ethanol is 39.3 kJ/mol.) answer in mmHg b.) Calculate the amount of energy (in kJ) necessary to convert 357 g of liquid water from 0°C to water vapor at 182°C. The molar heat of vaporization (Hvap) of water is 40.79 kJ/mol. The specific heat for water is 4.184 J/g · °C, and for steam is 1.99 J/g ·°C....

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT