O-zoners

Group 22 Group Name : O-zoners
Group Members :
STANLEY FOO GUO FENG, KOH HWEE KWAN REBECCA, KHAM WENHUI, LEE JING KANG BENEDICT, LEE WEI SONG, SEAH ZHI HAO JOSHUA
1.

Desalination is expensive, environmentally damaging and is only viable for coastal communities. it is also not very efficient, and usually used by developed countries.

2.

Water-soluble vitamins are usually polar in nature, and is compatible with polar water molecules to form hydrogen bonding, thus is soluble in water. Fat-soluble vitamins are non-polar in nature, making it compatible with non-polar solvents such as fats.

3.

a. Hanging laundry instead of using the dryer will use no electricity , thus reducing energy consumption.

b. Walk, bike and public transportation prevents unnecessary emissions of NOx and SOx from vehicles.

c. This reduces the energy consumption, thus, burning less coal/fossil fuels for electricity, reducing NOx and SOx.

d. This reduces heat loss to surroundings and increase efficiency.

e. Reduces the need for import, thus less fuel is burnt for transportation, reducing NOx and SOx emissions.

4.

a. Soot produced by coal-fired plants reduces visibility. Small droplets of SO3 smogs also reduces visibility

b. ~pH 4.6
Since natural pH of rain is 5.6. For every 10 times increase in H+ will lead to a decrease of 1 pH unit.

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