Heat of Condensation: Solving Methanol Homework

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SUMMARY

The discussion focuses on calculating the heat of condensation for methanol, which is equal to the negative of its heat of vaporization. The participant attempted to find the heat of vaporization but struggled to arrive at an answer that matched the provided choices. They confirmed that their approach was correct, indicating that option (a) was likely the correct answer based on their calculations.

PREREQUISITES
  • Understanding of thermodynamics principles, specifically heat transfer.
  • Familiarity with the concept of heat of vaporization and condensation.
  • Basic algebra skills for manipulating equations.
  • Knowledge of methanol's physical properties.
NEXT STEPS
  • Research the heat of vaporization for methanol using reliable chemical databases.
  • Study the principles of thermodynamics related to phase changes.
  • Practice problems involving heat transfer in condensation and vaporization processes.
  • Explore the implications of heat of condensation in real-world applications, such as distillation.
USEFUL FOR

Chemistry students, educators, and professionals involved in thermodynamics or chemical engineering who are looking to deepen their understanding of phase change calculations.

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Homework Statement



http://i.minus.com/jFwk7CteHDISN.png

Homework Equations



Heat of condensation = -(heat of vaporization)

The Attempt at a Solution



Okay, so I tried to find the heat of vaporization. Then I to took the negative of it since the process is condensation, and energy is being released from the methanol as it condenses into a liquid. I was wondering if my process was right since I tried multiple times, unsuccessfully, to even get an answer that was in the answer choices.

https://scontent-b-dfw.xx.fbcdn.net/hphotos-prn2/v/1476519_10201075669555617_704917569_n.jpg?oh=06f3065e192fa4c6498edd8ecc1300a1&oe=528A7C22
 
Last edited by a moderator:
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I just skimmed and it looks OK to me. (a) seems to be the right answer.

Please read the forum rules. Don't post questions as images unless it is really necessary.
 
Thank you, and I apologize for the images I've posted. I'll refrain from posting further images but I can't do anything about the images in posts I've already posted.
 

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