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4.1 7th edition

Posted: Tue Jan 29, 2019 2:05 pm
by Camille Marangi 2E
How much heat is required to convert a block of ice of mass 42.30 g at -5.042 C into water vapor at 150.35 C?

So I go through all the calculations (42.3*2.03*5.042+42.3*336.611+42.3*4.184*100+42.3*2259.23+42.3*2.01*50.35) and I end up with the answer 128 KJ but the solution is 132 KJ. Am I missing any steps?

Re: 4.1 7th edition

Posted: Wed Jan 30, 2019 2:30 pm
by Katie Frei 1L
Are you sure you input all of your calculations correctly? When i plugged in the equation you provided I got 132 kJ, not 128kJ. Maybe try inputting your values again into your calculator.