The car's initial speed was 32m / s and it takes 99 seconds for the car to come to a full stop after the driver applies the brak
1 answer:
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1) 5765 mol
First of all, we need to find the volume of the gas, which corresponds to the volume of the room:
Now we can fidn the number of moles of the gas by using the ideal gas equation:
where
is the gas pressure
is the gas volume
n is the number of moles
R is the gas constant
is the gas temperature
Solving for n,
2) 184 kg
The mass of one mole is equal to the molar mass of the oxygen:
so if we have n moles, the mass of the n moles will be given by
since n = 5765 mol, we find