Answer: The rate of diffusion is directly proportional to the molecular weight of any gaseous substance
Explanation:
According to Graham's law of diffusion, the rate of diffusion is directly proportional to the molecular weight of the gaseous substance.
Hence, the lighter the molecular weight, the faster the diffusion.
The answer is 313.15 Kelvin
To get this we use the equation K(Kelvin)=C(Celsius)+273.15
So: 40+273.15=313.15
Hope this helps :)
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