Correct answer
A. Newton’s law of cooling
Explanation
The correct answer is Newton’s law of cooling.
A spherical porous catalyst particle of radius R is subjected to reactant A which reacts to form B by a zero order surface reaction A → B. Film mass transfer resistance is negligible and pore diffusion of A is rate controlling. The effectiveness factor of the catalyst is reported as 7/8. Which of the following statement is true?
A hardened steel essentially contains________?
The minimum baffle height should be ________?
Calorific value of ________?
Which of the following is not an explosive?
The total number of atoms in 8.5 gm of NH3 is ________ × 1023?