Qualification > Sciences
chem paper 1 doubt
MaNa:
my book says air lock allows the bubbles of co2 to escape BUT doesnt allow th air to get in
Q80BOY:
--- Quote from: mana on May 20, 2009, 04:20:53 pm ---my book says air lock allows the bubbles of co2 to escape BUT doesnt allow th air to get in
--- End quote ---
ya, same here !!
annie_angel:
--- Quote from: mana on May 20, 2009, 04:19:32 pm ---yea
which means its room temperature
w8 it should be 18-20 degree
so yea now it make sence why it is A
with heat
bcuz room temperature is 24 degree
n soo it fermentatrion will carry on
--- End quote ---
so it is A...air lock is used soctht oxygen doesnt get in or we would not get ethanol
annie_angel:
and cotton is used to let the co2 escape
MaNa:
yup it is A
bcuz heat is not required
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