Suppose you are a brave soldier and working for the defense of your country. You joined the army on your 20 birthday. Very next day it was asked to you to go in a cave and stay there until asked to come out. Wher you came out of the cave you became an 80 years old man. Now assume, if you slept 8h/day then how muc time (in years) you have spent sleeping in the cave? Select one: О a. 27 уг O b. 20 yr O c 5 yr O d. 10 yr O e. 15 yr

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Basic Chemical Calculations (Process and Variables)

A basic chemical calculation involves the application of the law of chemical proportions to various reactions and material and energy balance calculations on various chemical processes. Basic chemical calculation helps students analyze various chemical processes and develop problem-solving skills. The chemical manufacturing processes are divided into unit operations involving physical changes of material and unit processes involving the chemical transformation of materials. For instance, fluid flow, heat transfer, and mass transfer are unit operations, and oxidation, reduction, and pyrolysis are unit processes.