The rate law for the decomposition of phosphine (ph3) is below. it takes 120. s for 1.00 m ph3 to decrease to 0.250 m. how much time is required for 4.00 m ph3 to decrease to a concentration of 0.320 m?

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts