Question

Which of the following mixture does not obey Daltons law of partial pressures.

• A. $C{O}_2$ and $O_2$ at room temperature
• B. $N{H}_3$ and $HCl$ at $0^{0}C$
• C. $N{H}_3$ and $HCl$ at room temperature
• D. Excess of $C{l}_2$ and $N{H}_3$

Answer 1

Answer: (C)

$N{H}_3$ and $HCl$ at room temperature

When a mixture of NH3 and HCl react chemically with spontaneous reaction it would lead in the formation of chemical called NH4Cl.

By this the volume of the gas is automatically changed and from this reaction there is no formation of pressure. Hence the two gases do not obey Dalton's law of partial pressure