*SK025: REACTION KINETICS*

Determine order of reaction for the reactant A and B based on this rate law:

Rate = K [A]²[B]¹

• [A] first order and [B] first order

• [A] first order and [B] second order

• [A] second order and [B] first order

• [A] second order and [B] second order

Tags

NGSS.HS-PS1-5

What is the unit for rate constant,K if rate law:

Rate = K [A]

• s^-1

• M s^-1

• M^-1 s^-1

• M^-2 s^-1

Tags

NGSS.HS-PS1-5

Given the chemical equation, Haber Prosess

N₂(g) + 3H₂ (g) --> 2NH₃ (g)

Based on this reaction, first order for concentration N₂ and zero order for concentration H₂.

Write rate law:

• Rate = K [N₂]¹ [H₂]¹

• Rate = K [N₂]¹

• Rate = K [H₂]⁰

• Rate = K [N₂]¹ [H₂]³

Tags

NGSS.HS-PS1-5

All the factors can be affected rate of reaction. EXCEPT

• Concentration

• Pressure

• Temperature

• Zuhaizi

What happened to the rate of reaction, if concentration of reactant is 'zero order'.

• rate of reaction will become double

• rate of reaction will become triple

• rate of reaction will become quadrapel

• No affect to the rate of reaction

Tags

NGSS.HS-PS1-5

Given 3A + B -> 2C

Which statement is TRUE

• Concentration A will be increase and concentration B will be decrease after reaction.

• Concentration A will be increase and concentration C will be decrease after reaction.

• Concentration B will be decrease and concentration C will be increase after reaction.

• Concentration B will be decrease and concentration A will be increase after reaction.

Determine the value of rate constant, K based on this table

Rate = K [Q]²

• 1.0 M^-1 s^-1

• 2.0 M^-1 s^-1

• 3.0 M^-1 s^-1

• 4.0 M^-1 s^-1

Tags

NGSS.HS-PS1-5

Which statement will be increase the rate of reaction

• Temperature must be lowered

• Dilute concentration

• Lower pressure

• Smaller size particles

Which of the rate law refer to the unit of the rate constant, K is M^-2s^-1.

• rate = K [ A ] [ B ]

• rate = K [ A ] [ B ]²

• rate = K [ A ]²

• rate = K [ A ]² [ B ]²

Tags

NGSS.HS-PS1-5

Which of the graph refer for this chemical reaction:

2Q (g) ---> R (g)

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