Which of these reactions is an addition reaction?
h4c2+ br2 → h5c2br + hbr
oh4c2+ hbr → h5c2br
h5c2ci+ naoh → h5c20h + naci

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.

particle   p is an electron and particle q is a neutron

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.