Normal petrol is better for the environment. The end product that comes out of your car is worse, but it takes roughly one and a quarter gallons of gas to make a gallon of ethanol. So from production to end result normal gasoline is better.
water contains iron and ethanol doesnt. this is why Water has ions, ( not iron), in a higher concentration than ethanol.
In regards to computer processors the higher the number of gigahertz the faster it is.
Ethanol has hydrogen bond where as ether does not.
Biodiesel
Water has a higher boiling point than ethanol, and so will evaporate more slowly at high temperatures than ethanol. Also, I think water has a higher heat capacity, which means it will stay hot longer.
ethanol has a higher boiling point- of 78°C :)
Ethanol is known to have a lower absorbance, in comparison to high temperatures, and this is base on ethanol chemical structure.
Oxygen.
because ethanol dissolve urea at slightly higher temperature and not dissolve the impurities
Ethanol has intermolecular hydrogen bonding where as diethylether does not have this kind of bonding. So BP of ethanol is higher than diethylether.
a) 70% ethanol has been found to b most effective in killing microbes.Higher or lower concentrations may not b as effective. b) if u use 90% or absolute ethanol, it will evaporate fast and may not be much effective. c) using higher concentrations will leave its traces on the applied surfaces d) higher concentrations of ethanol are harmful to skin and makes it dry pretty a) 70% ethanol is most effective.higher or lower ones r not as effective b) it evaporates at a slow rate than 90% or absolute ethanol. therefore it is more effective and saves ur ethanol too.. c) higher concentrations alwez leave traces applied surfaces thus addind an unwanted reagent d) 70% ethanol is comparatively less harmful to ur hands.. higher concentrations makes ur skin dry..
Ethanol has an -OH group which can involve in hydrogen bonding and diethyl ether molecules haven't such groups.