Please help me out with Chemistry.

Chemistry
Tutor: None Selected Time limit: 1 Day

Two liquid compounds, A and B, have the same molecular weight.  Samples of A & B were placed on temperature probes and allowed to evaporate, as in today's experimental procedure.  After 105 seconds, Liquid A had a ΔT of 10.2ºC, and liquid B had a ΔT of 3.7ºC.

1.  Which of the two liquids required more energy to overcome intermolecular attractions and evaporate?  Explain your reasoning.

2.  Which of the two liquids has higher intermolecular attractions?  Explain your reasoning.

Sep 5th, 2015

Thank you for the opportunity to help you with your question!

liquid B requires more energy to overcome the inter-molecular attractions. This is because for a liquid to evaporate or boil the intermolecular forces must be broken first. Since liquid B had a lower change in temperature this means that it has stronger intermolecular forces that are not easily overcome by heat. 

As indicated liquid B  has higher intermolecular forces since they require more energy to break

Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 5th, 2015

I just want to make sure, but you split the two answers into two different lines, right?

Sep 6th, 2015

yes

Sep 6th, 2015

Are you studying on the go? Check out our FREE app and post questions on the fly!
Download on the
App Store
...
Sep 5th, 2015
...
Sep 5th, 2015
Dec 4th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer