GROUP 18

Group 18 Group Name : GROUP 18
Group Members :
KOH PUAY CHING, PANG KA YII, NORMAN, ANG JUN WEI, ER SIEW SEAN, IVAN HENG
1.

It is because desalination techniques requires energy to remove salts from seawater and therefore are costly.

2.

Water soluble vitamins would be polar because like dissolves like. Water is a polar molecule. Thus, a water soluble compound would be polar too. Fat soluble vitamins will not be polar.

3.

A) without using dryer, it can help to reduce the electrical energy usage and thus burning less coal. As a result, lesser SO2 is produced and there will be a decrease in acid rain.
B) It reduces vehicle emissions which produces NOx that can cause acid rain.
C) As smaller and larger loads use about the same amount of energy, washing larger loads will be more energy efficient
D) It can help to reduce heat loss and thus reduce burning of coal
E) Save transportion usage and thus cut down fuel usage.

4.

A) Sulfur dioxide is produced by the plants, creating sulphate particles which cause the poor visibility.
B) Normal rain pH is about 5-6. If it is 10 times more acidic, the pH will be 4-5.

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