The term in the rate expression refers to the:a)Increase in concentration of the reactantsb)Average rate of the reactionc)Instantaneous rate of the reactiond)Concentration of the reactantsCorrect answer is option 'C'. Can you explain this answer?

Question

The term  in the rate expression refers to the:a)Increase in concentration of the reactantsb)Average rate of the reactionc)Instantaneous rate of the reactiond)Concentration of the reactantsCorrect answer is option 'C'. Can you explain this answer?

Answer

In my opinion correct answer is b it may be c but reactant and product both have instantaneous rate and  reactant have negative because of the disappearance and product have positive .So answer c is correct in every respect.

Answer

Explanation:
The term -dx/dt in the rate expression refers to the instantaneous rate of the reaction.

Rate of a Chemical Reaction:
The rate of a chemical reaction refers to how quickly the reactants are being consumed or how quickly the products are being formed. It is commonly expressed as the change in concentration of a reactant or product with respect to time.

Rate Expression:
The rate expression is a mathematical representation of the rate of a chemical reaction. It shows how the rate of the reaction depends on the concentrations of the reactants.

The general rate expression for a reaction is given by:
Rate = k[A]^m[B]^n

Where:
- Rate is the rate of the reaction
- k is the rate constant
- [A] and [B] are the concentrations of the reactants A and B
- m and n are the orders of the reaction with respect to A and B, respectively

Interpretation of -dx/dt:
In the rate expression, the term -dx/dt represents the change in concentration of a reactant with respect to time. The negative sign indicates that the concentration of the reactant is decreasing as the reaction proceeds.

The rate of reaction can be determined by measuring the change in concentration of a reactant or product over a small interval of time. By taking the derivative of the concentration with respect to time, we obtain the instantaneous rate of the reaction at a specific point in time.

The derivative -dx/dt represents the rate at which the concentration of the reactant is changing at that specific instant. It gives us the slope of the concentration-time curve at that point.

Therefore, the term -dx/dt in the rate expression refers to the instantaneous rate of the reaction, which represents how quickly the concentration of a reactant is changing at a specific moment in time.

Answer

Dx/dt means a instantaneous change of a quantity, and with the minus sign it means reduction of a quantity. So -dx/dt represents instantaneous rate of a reaction.

Answer

The correct answer is option C
The term

in the rate expression refers to the instantaneous rate of the reaction.
It is the ratio of the decrease in the concentration of a reaction to the time taken for this decrease.

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