In a first–order reaction (a → b and rate = k [a]), tripling the concentration of a will have what effect on the reaction rate?

a it will stay the same.

b it will increase by a factor of three.

c it will decrease by a factor of three.

d it will increase by a factor of two.

2. how is heavy water different from normal water

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.