Download Aptitude Crack
img not found img not found

Chemical Engineering Basics

Q1: Consider an ideal solution of components A and B. The entropy of mixing per mole of an alloy containing 50 wt% B is

A R ln 2

B -R ln 2

C 3 R ln 2

D -3R ln 2

ANS:A - R ln 2

We know entropy of mixing= - total moles(-R * summation(Xi*ln(Xi))).
= - 1*(R*(0.5*ln(0.5)+0.5*ln(0.5))),
= -1*(R*2*0.5*ln(0.5)),
=-R*ln*(0.5),
= R*ln*(2).
So option A is correct one.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.