# A catalytic zero-order reaction is conducted using a catalyst with a flat-plate geometry. a. Write the

A catalytic zero-order reaction is conducted using a catalyst with a flat-plate geometry.

a. Write the governing material balance equations to describe the processes occurring within the pellet.
b. What is the maximum value of Thiele modulus (max, =1) for the internal effectiveness factor to be 1? Obtain the concentration profile of the reactant as a function of position for Ó < Omax, E=1.
c. Obtain an equation relating the location of zero concentration to Thiele modulus for Φ>Φmax, ε=1.
d. Plot the effectiveness factor as function of Thiele modulus.

BAJRY

C2H6O + 3O2 > 2CO2 + 3H2O

Explanation: in a combustion reaction hydrocarbons reacts with oxygen gas to produce carbon dioxide and water. After predicting the products balance the chemical equation.

galaxychild101

Tc-99m is a metastable  isomer of Tc-99. It finds widespread applications in medical diagnostic procedures.

Tc-99 is also a radioactive element. It's half-life is 2,11,000 years. Upon radioactive decay, it emits beta particles and gets converted into stable compound Ruthenium-99

This process of radioactive decay is shown below.
99 43Tc    →       99 44Ru     +     0 -1e
(stable)           (β particle)

npellot123

Explanation:

The combustion of ethanol is best represented by the equation below:

C₂H₅OH + 3O₂   →   2CO₂   +   3H₂O    +   heat

Combustion process is very common among hydrocarbons.

Ethanol is an alcohol and in the presence of oxygen it will combust.

In combustion heat energy is always released into the environment.

C₂H₅OH + 3O₂   →   2CO₂   +   3H₂O    +   heat

We see that ethanol combines with oxygen to give carbon dioxide and water in the reaction above.

The heat produced signifies that the reaction is exothermic in nature.

Combustion

#learnwithBrainly

kayltosh2729

the last choice is the equation for photosynthesis

jayzelgaspar8005

The last choice is the equation for photosynthesis

monasiamcneill

C2H6O + 3O2 —> 2CO2 + 3H2O

Explanation: