Question

At Boyle’s temperature Z = 1 over a wide range of pressure because:

• A. Only a is negligible
• B. Only b is negligible
• C. Both a and b are negligible
• D. a and b are high

Answer 1

Answer: (C)

Both a and b are negligible

When Z = 1 over wide range of pressures, $PV=nRT$.

This is possible only when both a and b have negligible values so that $(P+\frac{a}{V_m^2})=P$ and $(V_m-b)=V_m$.

Thus, the option C is the correct option.