JEE Main On 8 April 2017 Question 13
Question: Among the following, the incorrect statement is : [JEE Online 08-04-2017]
Options:
A) At low pressure, real gases show ideal behaviour.
B) At very low temperature, real gases show ideal behaviour.
C) At Boyle’s temperature, real gases show idela behaviour.
D) At very large volume, real gases show ideal behaviour.
Show Answer
Answer:
Correct Answer: B
Solution:
A) At low pressure, real gases show ideal behavior.
This is generally true because at low pressure, the intermolecular forces become negligible, and the volume of the particles themselves becomes less significant compared to the total volume of the gas. B) At very low temperature, real gases show ideal behavior.
This is incorrect. At very low temperatures, intermolecular forces become significant, and real gases deviate from ideal behavior. They tend to liquefy or solidify rather than behave ideally. C) At Boyle’s temperature, real gases show ideal behavior.
This is true. At Boyle’s temperature, a real gas behaves ideally over a range of pressures because the attractive and repulsive forces balance each other out. D) At very large volume, real gases show ideal behavior.
This is true because at large volumes, the gas particles are far apart, reducing the impact of intermolecular forces and the volume of the particles themselves.
Therefore, the incorrect statement is: B) At very low temperature, real gases show ideal behavior.
BETA
