May 29, 2016

Homework Help: Biology

Posted by Jessie on Tuesday, March 17, 2009 at 3:01am.

Hi guys,
need help with some done, but not sure about these thanks for any help! :)
Take a balloon filled with hydrogen gas. Touch a match
to the balloon. What happens? Big boom and lots of heat
given off. Is ΔH favorable or unfavorable?? It would be favorable as its going out to the environment, right?
Add solid urea to a beaker of water. The beaker gets very cold.
Is ΔH favorable or unfavorable???
Unfavorable as there would be no net heat lost, right?

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