2010 Final Exam Q1B: Which is greater delta H?

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jennifer_zhou2C
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2010 Final Exam Q1B: Which is greater delta H?

Postby jennifer_zhou2C » Sun Mar 06, 2016 10:40 am

The part I'm struggling with is the second part of the question which asks:
Which requires more heat:
Breaking one mole of carbon-carbon single bonds or melting one mole ice?

The answer states "breaking a covalent bond" but aren't both of these bonds O-H and C-C covalent bonds?? I put that it was melting the mole of ice, but I was just hoping for some clarification.

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Re: 2010 Final Exam Q1B: Which is greater delta H?

Postby Chem_Mod » Sun Mar 06, 2016 6:22 pm

When you're melting ice or conducting any phase change in general, you are not breaking any covalent bonds.


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