Question

Statement I: Under the conditions of low pressure and high temperature, the ideal gas laws are inaccurate.
Statement II: The deviation from the ideal gas law is due to non-negligible volume of the molecules and the interactions between molecules.

• A. Statement $1$ and Statement $2$ are correct and Statement 2 is the correct explanation of Statement $1$
• B. Both the Statement $1$ and Statement $2$ are correct and Statement $2$ is NOT the correct explanation of Statement $1$
• C. Statement $1$ is correct but Statement $2$ is not correct
• D. Statement $1$ is not correct but Statement $2$ is correct
• E. Both the Statement $1$ and Statement $2$ are not correct

Answer 1

The correct option is D Statement $1$ is not correct but Statement $2$ is correct

The deviation from ideal gas can be represented by :

$(P+\frac{a}{V^2})(V-b)=RT$

i.e, at high temperature and low pressure, the gas equation reduces to ideal gas equation

$PV=RT$

the turn $(V-b)$ represent the effect of intermolecular attractive forces on the pressure a gas exerts on the containers walls.