What do colligative properties depend on? A) the identity of the solute b) the number of particles present in the solution c) th
2 answers:
Answer: b) the number of particles present in the solution
Explanation: Colligative properties are the properties which depends on the amount or the number of particles.
Colligative properties include relative lowering in freezing point,elevation in boiling point, depression in freezing point and osmotic pressure.
= osmotic pressure
C= concentration which depends on the amount or the moles of solute irrespective of its identity.
R= solution constant
T= temperature
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Answer: The correct answer is Option C.
Explanation:
We are given a piston of a pump, which means that there is no loss of the air. and there is a change in pressure and volume but temperature of the system remains constant.
As, the pressure of the system increases, there will be more number of particles. So, the number of collisions per unit area will increase.
But in the question, volume gets doubled. So, the pressure will be determined by using Boyle's Law:
where, are the initial and final volume respectively.
Putting the change in volume in above equation, we get:
where, are the initial and final pressure respectively.
As, the pressure is reduced to half of the initial pressure. So, the number of collisions per unit area will also be reduced to one-half.
Hence, the correct answer is Option C.