## Reactant Concentration in First Order followed by Zero Order Reaction Solution

STEP 0: Pre-Calculation Summary
Formula Used
Reactant Concentration = Initial Reactant Concentration*exp(-Rate Constant for First Step First Order Reaction*Time Interval)
C = Co*exp(-k1*Δt)
This formula uses 1 Constants, 1 Functions, 4 Variables
Constants Used
e - Napier's constant Value Taken As 2.71828182845904523536028747135266249
Functions Used
exp - Exponential function, exp(Number)
Variables Used
Reactant Concentration - (Measured in Mole per Cubic Meter) - The Reactant Concentration refers to the amount of reactant present in the solvent at any given point of time during the process.
Initial Reactant Concentration - (Measured in Mole per Cubic Meter) - The Initial Reactant Concentration refers to the amount of reactant present in the solvent before the considered process.
Rate Constant for First Step First Order Reaction - (Measured in 1 Per Second) - Rate Constant for First Step First Order Reaction is defined as the constant of proportionality for first step reaction in two steps first order irreversible reaction in series.
Time Interval - (Measured in Second) - A Time Interval is the amount of time required for the change from initial to the final state.
STEP 1: Convert Input(s) to Base Unit
Initial Reactant Concentration: 80 Mole per Cubic Meter --> 80 Mole per Cubic Meter No Conversion Required
Rate Constant for First Step First Order Reaction: 0.42 1 Per Second --> 0.42 1 Per Second No Conversion Required
Time Interval: 0.48 Second --> 0.48 Second No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
C = Co*exp(-k1*Δt) --> 80*exp(-0.42*0.48)
Evaluating ... ...
C = 65.393746503178
STEP 3: Convert Result to Output's Unit
65.393746503178 Mole per Cubic Meter --> No Conversion Required
65.393746503178 65.39375 Mole per Cubic Meter <-- Reactant Concentration
(Calculation completed in 00.003 seconds)
You are here -
Home »

## Credits

Created by akhilesh
K. K. Wagh Institute of Engineering Education and Research (K.K.W.I.E.E.R.), Nashik
akhilesh has created this Calculator and 200+ more calculators!
Verified by Prerana Bakli
National Institute of Technology (NIT), Meghalaya
Prerana Bakli has verified this Calculator and 1500+ more calculators!

## < 10+ First Order followed by Zero Order Reaction Calculators

Maximum Intermediate Concentration in First Order followed by Zero Order Reaction
Maximum Intermediate Concentration = Initial Reactant Concentration*(1-(Rate Constant for Zero Order Reaction/(Initial Reactant Concentration*Rate Constant for First Step First Order Reaction)*(1-ln(Rate Constant for Zero Order Reaction/(Initial Reactant Concentration*Rate Constant for First Step First Order Reaction)))))
Rate Constant for Zero Order Reaction using Rate Constant for First Order Reaction
Rate Constant for Zero Order Reaction = (Initial Reactant Concentration/Time Interval)*(1-exp((-Rate Constant for First Step First Order Reaction)*Time Interval)-(Intermediate Concentration/Initial Reactant Concentration))
Intermediate Concentration for First Order followed by Zero Order Reaction
Intermediate Concentration = Initial Reactant Concentration*(1-exp(-Rate Constant for First Step First Order Reaction*Time Interval)-((Rate Constant for Zero Order Reaction*Time Interval)/Initial Reactant Concentration))
Rate Constant for First Order Reaction using Rate Constant for Zero Order Reaction
Rate Constant for First Step First Order Reaction = (1/Time Interval)*ln(Initial Reactant Concentration/(Initial Reactant Concentration-(Rate Constant for Zero Order Reaction*Time Interval)-Intermediate Concentration))
Time at Max Intermediate in First Order followed by Zero Order Reaction
Time at Maximum Intermediate Concentration = (1/Rate Constant for First Step First Order Reaction)*ln((Rate Constant for First Step First Order Reaction*Initial Reactant Concentration)/Rate Constant for Zero Order Reaction)
Initial Reactant Concentration using Intermediate for First Order followed by Zero Order Reaction
Initial Reactant Concentration = (Intermediate Concentration+(Rate Constant for Zero Order Reaction*Time Interval))/(1-exp(-Rate Constant for First Step First Order Reaction*Time Interval))
Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction
Rate Constant for First Step First Order Reaction = (1/Time Interval)*ln(Initial Reactant Concentration/Reactant Concentration)
Time Interval for First Order Reaction in First Order followed by Zero Order Reaction
Time Interval = (1/Rate Constant for First Step First Order Reaction)*ln(Initial Reactant Concentration/Reactant Concentration)
Initial Reactant Concentration in First Order followed by Zero Order Reaction
Initial Reactant Concentration = Reactant Concentration/exp(-Rate Constant for First Step First Order Reaction*Time Interval)
Reactant Concentration in First Order followed by Zero Order Reaction
Reactant Concentration = Initial Reactant Concentration*exp(-Rate Constant for First Step First Order Reaction*Time Interval)

## Reactant Concentration in First Order followed by Zero Order Reaction Formula

Reactant Concentration = Initial Reactant Concentration*exp(-Rate Constant for First Step First Order Reaction*Time Interval)
C = Co*exp(-k1*Δt)

## What is Multi-step Reaction?

A multi-step reaction is a combination of two or more elementary steps. An elementary step is a single, simple step involving one or two particles. The rate-determining step is the slowest step in a multi-step reaction, and the overall reaction rate will be exactly the same as the rate of the slowest step.

## What are first order and zero order reactions?

A first-order reaction can be defined as a chemical reaction in which the reaction rate is linearly dependent on the concentration of only one reactant. In other words, a first-order reaction is a chemical reaction in which the rate varies based on the changes in the concentration of only one of the reactants.
Zero-order reaction is a chemical reaction wherein the rate does not vary with the increase or decrease in the concentration of the reactants.

## How to Calculate Reactant Concentration in First Order followed by Zero Order Reaction?

Reactant Concentration in First Order followed by Zero Order Reaction calculator uses Reactant Concentration = Initial Reactant Concentration*exp(-Rate Constant for First Step First Order Reaction*Time Interval) to calculate the Reactant Concentration, The Reactant Concentration in First Order followed by Zero Order Reaction formula is defined as the amount of reactant present at the given instant of time for a multi-step reaction which is first order reaction followed by zero order reaction. Reactant Concentration is denoted by C symbol.

How to calculate Reactant Concentration in First Order followed by Zero Order Reaction using this online calculator? To use this online calculator for Reactant Concentration in First Order followed by Zero Order Reaction, enter Initial Reactant Concentration (Co), Rate Constant for First Step First Order Reaction (k1) & Time Interval (Δt) and hit the calculate button. Here is how the Reactant Concentration in First Order followed by Zero Order Reaction calculation can be explained with given input values -> 65.39375 = 80*exp(-0.42*0.48).

### FAQ

What is Reactant Concentration in First Order followed by Zero Order Reaction?
The Reactant Concentration in First Order followed by Zero Order Reaction formula is defined as the amount of reactant present at the given instant of time for a multi-step reaction which is first order reaction followed by zero order reaction and is represented as C = Co*exp(-k1*Δt) or Reactant Concentration = Initial Reactant Concentration*exp(-Rate Constant for First Step First Order Reaction*Time Interval). The Initial Reactant Concentration refers to the amount of reactant present in the solvent before the considered process, Rate Constant for First Step First Order Reaction is defined as the constant of proportionality for first step reaction in two steps first order irreversible reaction in series & A Time Interval is the amount of time required for the change from initial to the final state.
How to calculate Reactant Concentration in First Order followed by Zero Order Reaction?
The Reactant Concentration in First Order followed by Zero Order Reaction formula is defined as the amount of reactant present at the given instant of time for a multi-step reaction which is first order reaction followed by zero order reaction is calculated using Reactant Concentration = Initial Reactant Concentration*exp(-Rate Constant for First Step First Order Reaction*Time Interval). To calculate Reactant Concentration in First Order followed by Zero Order Reaction, you need Initial Reactant Concentration (Co), Rate Constant for First Step First Order Reaction (k1) & Time Interval (Δt). With our tool, you need to enter the respective value for Initial Reactant Concentration, Rate Constant for First Step First Order Reaction & Time Interval and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well. Let Others Know