Chemical Engineering

Recent Answers

2009-11-11 Thermodynamics - Open Window cooling:

Hi Marisela, There are several factors which have to go into the model. One is the difference in temperature between inside and out. Only if it is hotter inside can any cooling be effected. The other

2009-11-11 Careers: Engineering & Electrical Trades - help?:

I will answer what I know. Volt meters read voltage line to line, and line to neutral. Amprobe/ammeter reads current draw. Your voltages may be right or wrong. The Y or Delta config can vary the voltages

2009-11-08 Thermodynamics - Thermoelectric Generators?:

Hi Rami These devices are very inefficient (5-8%) and can only usefully be considered with waste heat. They have thermal problems and electrically can only be applied to loads of high resistance.

2009-11-02 Thermodynamics - LPG Vs Petrol Vs Ethanol:

Hi Eddie, This is too long and involved for me to do so I will supply some brief answers/suggestions. Q1. You should look this up yourself, try Wikipedia. Q2. This is the same for all three fuels

2009-10-26 Thermodynamics - Atomic Structure:

Hi Tommy, Q1 You read the label on the jars! But if there is no label there are a series of tests that you do which will help identify the atoms present. Does it dissolve in water, acid, alkali, solvents?