Question

The water can be made to boil even at $0^{\circ }C$ if the pressure of surroundings is

• A. More than atmospheric pressure
• B. Less than atmospheric pressure
• C. Zero
• D. Water cannot be boiled below 0.01${}^{o}C$

Answer 1

The correct option is D Water cannot be boiled below 0.01${}^{o}C$

The correct answer is option(A)

Boiling point(in Fahrenheit) $=49.161\times Ln\left(\text{Pressure in inches Hg}\right)+44.932$

$Ln\left(\text{Pressure in inches Hg}\right)=32-44.932=-12.932,$

$\left(\text{Pressure in inches Hg}\right)=e^{-12.932}=2.42\times {10}^{-6}=2.42\times 2.54\times {10}^{-5}=6.1468\times {10}^{-5}mmHg$