Which one of the following is not a valid expression for the rate of the reaction below? 4nh3 + 7o2 → 4no2 + 6h2o which one of the following is not a valid expression for the rate of the reaction below? 4nh3 + 7o2 4no2 + 6h2o 16 δ[h2o]δt 14 δ[no2]δt - 14 δ[nh3]δt - 17 δ[o2]δt all of the above are valid expressions of the reaction rate.

Answer : All of the above are valid expressions of the reaction rate.

Explanation :

The given rate of reaction is,

The expression for rate of reaction for the reactant :

The expression for rate of reaction for the product :

From this we conclude that, all the options are correct.

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.