Rates of reaction, rate constants and assigning units and orders

If [A] x 2 and rate=0 change what is the order?

0 order

If [A] x 2 and rate= x 2 what is the order?

1st order

If [A] x 2 and rate =x 4 what is the order?

2nd order

If rate=k [A] ^1 [B]² what is the total order?

1+2=3

What is the equation for rate?

Rate=K[A]^x [B]^y

Identify which order this rate graph represents

Because there is no change in rate, so it is a straight line, because rate is constant.

0 order

Identify which order this rate graph represents

1st order

Because the rate increases

Identify which order this rate graph represents

2nd order

As the rate quadruples

What is the unit it for rate?

Mol dm^-3 s^-1

What is the unit for concentration?

Mol dm^-3

What order is is if [A] /2 and rate/2?

1st order

Because it would be the rate would have doubled if it had doubled

Explain why doubling the temperature has a greater effect than increasing the concentration?

Increase in energy of the molecules causing more molecules to have energy higher of equal to the activation energy.

Rate of successful collisions increases.

Which has a greater effect.

What is the unit for k when k=rate/[A]^1 [B]^1

mol^-1 dm³ s^-1

What is the units for k when k=rate/[A]^1 [B]²

mol^-2 dm^6 s^-1

It is B because it is a second order reaction