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Quiz 1

Posted: Sat Feb 06, 2016 12:07 pm
by 104425933
Can someone please explain how we solve question number 4 on the quiz?

Re: Quiz 1

Posted: Sat Feb 06, 2016 4:31 pm
by Chem_Mod
Please post the problem

Re: Quiz 1

Posted: Sun Feb 07, 2016 11:30 pm
by 704628249
Well, you need to change 1 kg of steam at 180 degrees to an ice cube at 0 degrees. So, it is the heat it takes to lower the temp to 100 degrees, then the heat it takes to turn it to water, then the heat it takes to lower the temperature of water to 0 degrees, then the heat it takes to turn it to ice. If you add all of these up, you will get the total energy.