entalpija

Submitted by Milan3 on Wed, 03/11/2015 - 21:13
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koliko se toplote oslobodi pri sagorrijevanju 17g etanola

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milicaradenkovic - Sat, 03/14/2015 - 11:58

C2H5OH+3O2-------------->2CO2+3H2O       deltaH= -1366.7 kJ/mol

n(C2H5OH)=m/Mr=17/46=0.369 mol

Q=deltaH*n= -1366.7*0.369= -504.31 kJ