The graph shows the distribution of energy in the particles of two gas samples at different temperatures, t1 and t2. a, b, and c represent individual particles.
based on the graph, which of the following statements is likely to be true?
particle b is more likely to participate in the reaction than particle a.
particle c is more likely to participate in the reaction than particle b.
most of the gas particles have either very high or very low kinetic energies.
more gas particles participate in the reaction at t2 than at t1.

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.

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)

i think it's letter a.