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Posted: Wed Jan 30, 2019 8:18 pm
by Maggie Doan 1I
The internal energy of a system increased by 982 J when it was supplied with 492 J of energy as heat.
How much work was done?
I got that work done was 490J but the book answer is 9.0 x 10^2J.

Re: 4B.3

Posted: Wed Jan 30, 2019 10:46 pm
by Kim Tran 1J
Your answer should be right. It should be +490 J or +4.90 x 10^2 J (3 sig figs).

The same question in the 6th edition has the answer listed as +4.90 x 10^2 J.