units

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605110118
Posts: 75
Joined: Wed Sep 18, 2019 12:21 am

units

Postby 605110118 » Thu Feb 06, 2020 4:37 pm

When is it okay to keep the units in g/celsius?

Vincent Leong 2B
Posts: 207
Joined: Fri Aug 09, 2019 12:15 am

Re: units

Postby Vincent Leong 2B » Thu Feb 06, 2020 10:57 pm

the most common units that we'll always be working with is J, g, K, L, and atm. It's good practice to convert to these units because a lot of the given units of, for examples, constants will be given in J/mol or kJ/mol. the 8.314 constant is also in K or kelvin units so leaving things in celsius can be troublesome if you do forget to convert units.

LBacker_2E
Posts: 104
Joined: Wed Sep 18, 2019 12:21 am
Been upvoted: 1 time

Re: units

Postby LBacker_2E » Thu Feb 06, 2020 11:54 pm

When you are calculating the specific heat capacity this will be in grams, but when you are calculating the molar heat capacity this will be in moles. As far as degrees C goes, what every your constant is given in (kelvin or celcius) is what you will have to work with. It does not seem to matter that much, just whatever is given in the problem is what you should use for temperature units.

Michelle N - 2C
Posts: 117
Joined: Wed Sep 18, 2019 12:19 am

Re: units

Postby Michelle N - 2C » Fri Feb 07, 2020 10:47 am

I think it really depends on what the problem asks/provides. Like what other people said, the common units are J, K, g, L, etc., since they match with the other units when calculating. As long as you know how to convert them, then I think all should be good. Hope that helps!

Anna Heckler 2C
Posts: 102
Joined: Wed Sep 18, 2019 12:18 am

Re: units

Postby Anna Heckler 2C » Fri Feb 07, 2020 12:46 pm

The biggest concern with units is just making sure that everything you are calculating is in consistent units. A given question may ask for different units, so just pay attention to that and make sure that you use the correct constants.


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