Question

At sea level air is dense. This is practical application evidence of_________.

• A. Boyle's law
• B. Charles' law
• C. Dalton's law
• D. Avogadro's law

Answer 1

The correct option is C Dalton's law

Dalton's law:
The relation between the total pressure of a mixture of non-reacting gases and the pressures of the individual gases was expressed by Dalton in the form of law of partial pressures. The partial pressure of a gas in a mixture is defined as the pressure at which the gas would exist if it is allowed to occupy the whole volume of the mixture at the same temperature.
According to Dalton's law of partial pressures, the total pressure of a mixture of gases is equal to the sum of the partial pressures of the constituent gases.
$P_{\text{moist gas}}=P_{\text{dry gas}}+$ Aqueous tension; and $P\propto density$
At sea level $P$ is high, so $d$ is high
Boyle's law:
Relation between pressure and volume of a gas
$PV$ = constant ( $n$ & $T$ constant)
Charles law:
Relation between volume and temperature of a gas.
$V/T=$ constant ($P$ & $n$ constant).
Avogadro's law:
Relationship between volume and amount of a gas
$v/n=$ constant ( $P$ & $T$ constant).