including phase changes

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annikaying
Posts: 94
Joined: Sat Sep 14, 2019 12:16 am

including phase changes

Postby annikaying » Sun Feb 09, 2020 8:40 pm

How can you tell when you have to include the energy required for a phase change in a reaction?

Wilson 2E
Posts: 100
Joined: Sat Aug 17, 2019 12:18 am

Re: including phase changes

Postby Wilson 2E » Sun Feb 09, 2020 8:47 pm

If a phase change does occur in the problem, the enthalpy of fusion/vaporization should be given (so long as it's not water, the values of which are on the formula sheet), which should indicate that you would need to include phase change calculations.

005321227
Posts: 90
Joined: Sat Sep 07, 2019 12:15 am

Re: including phase changes

Postby 005321227 » Sun Feb 09, 2020 8:53 pm

usually the phase change will be given in the question and you just apply it as needed


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