Homework Help: Chemistry

Posted by Oscar on Tuesday, September 27, 2011 at 9:49pm.

Search: How much energy (in Kj) is relased when 25.0g of ethanol vapor at 93, is cooled to -10? Ethanol has a melting point of -114.5, bp of 78.4, specific heat= 2.10J/g, heat of fusion =4.60Kj/mol, specicic heat= 1.9j/g, heat of vaporization = 38.56Kj/mol

Chemistry - Corey, Tuesday, September 27, 2011 at 11:10pm
Energy=(25.0g)(2.10J/g)(93+10)
Energy=5407.5 J*(1 KJ/ 1000 J)
Energy= 5.41 KJ

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