Are these statements about the contact equilibrium processes true?
Statement 1: Gas absorption, crystallization comes under the category of contact equilibrium processes.
Statement 2: Contact equilibrium processes does not depend on the concentration gradient.
a) True, False
b) True, True
c) False, True
d) False, False

Answer: a
Explanation: Gas absorption, crystallization are categorized under contact equilibrium processes. Contact equilibrium process is attained when the process reaches the equilibrium. Equilibrium is proportional to the concentration differences.