what quantity of energy does it take to convert .500kg ice at -20c to steam at 250c? specific heat capacities: ice, 2.03 J/gc liquide 4.2Jlgc steam 2.0J/gc, Hvap=40.7kj.mol; Hfus-6.02 kj/mol? Please help me i have a test tom

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nincompoop · Answer

can you try to solve this? so I know where your troubles are

anonymous · Answer

yeah i can try can you wait for me

nincompoop · Answer

ye

anonymous · Answer

okay
so first i coverted 500kg to 500g then i multiplied (2.03)(500g)(120)=121800
next i did 500(1/18.02)*6.02=167.03kkj
Now im stuck

nincompoop · Answer

laughing out loud

nincompoop · Answer

500 kg to 500 g?
no

anonymous · Answer

i dont then

nincompoop · Answer

okay work on your conversion rates then watch this video http://www.kentchemistry.com/links/Matter/HeatingCurve.htm

anonymous · Answer

alrighty buddy
first of all, 500g doesn't equal 500kg. the conversion rate is that there are 1000 grams in a kilogram
so 500kg = 500*1000 g

anonymous · Answer

oh wow huh okay thank you so much for catching that big mistake

anonymous · Answer

im using q=s*m*t right?

anonymous · Answer

wait its not 500 its .500 so the conversion is correct

anonymous · Answer

i cant get it please help me