If initial concentration is doubled, the time for half-reaction is also doubled, the order of reaction is

If the initial concentration of the reactant is doubled, the time for half reaction is also doubled. Then the order of the reaction is

If the initial concentration of the reactant is doubled, the time for half reaction is also doubled. Then order of the reaction is

For a general gaseous reaction of the type R to P , if the initial concentration of R is doubled, half life of the reaction is also doubled, the order of that reaction is