Moist NH3 is dehydrated using

If you pass the moist NH3 over calcium oxide(CaO),

CaO act as dehydarting agent this will absorb the water prsent with NH3.

at the end you get the dry NH3

Explanation:

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.

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explanation: