16. The diffusion rate of an unknown gas is measured to be 31.50 mL/min. Under identical conditions, the diffusion rate of oxygen gas is measured to be 30.50
mL/min. Hint: diffusion rate is directly related to velocity.
Determine the identity of the unknown gas from the following options:
a. CH4
b. CO
C. NO
d. CO2
e. NO2

Explanation:

r₁ and r₂ are rate of diffusion of gas having molecular mass of M₁ and M₂

1.0666 = 32 / M₁

M₁ = 30

molecular weight of NO = 14 + 16 = 30

So the unknown gas is NO .

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error