Stoichiometry - Engineering

Q1:

Which of the following holds good for a solution obeying Raoult's law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing ) ?

A ΔH = 1 (+ ve)and Δ V = -ve

B ΔH = 0

C ΔV = 0

D both (b) and (c)

ANS:D - both (b) and (c)

For a solution obeying Raoult's law (an ideal solution), the heat of mixing (Δ𝐻ΔH) is typically considered to be zero (Δ𝐻=0ΔH=0). Additionally, the volume change on mixing (Δ𝑉ΔV) is also assumed to be zero (Δ𝑉=0ΔV=0). Therefore, the correct option is: both (b) and (c)