Question

write one advantage and disadvantage of using ethanol

Answer 1

Advantages


1. It is proven to reduce combustion emissions. 
When compared to a fuel that is based on petroleum, such as gasoline, ethanol is able to reduce GHG emissions very effectively. For some vehicles, a reduction of up to 29% may occur for every mile traveled. Spills are less of a problem with this fuel as well. Because it is a corn-based product, nearly three-quarters of ethanol that is spilled in the environment can be broken down in as little as 5 days.



Disadvantages

1. It isn’t as effective a fuel as traditional gasoline. 
Compared to petroleum-based gasoline, ethanol is a less effective fuel. It takes up to 1.4 gallons of ethanol to replicate the mileage that 1 gallon of gasoline can provide. Flex-fuel vehicles that can run on E85 fuel have found that their gas mileage rates are over 25% lower, with some models seeing a 30% reduction with city miles.

Answer 2

advantage :It is proven to reduce combustion emissions. 

disadvantage : it is a corrosive fuel.