Question

If two gases are present in a container, the total pressure in the container is equal to

Answer 1

Answer: The correct option is (a).

Explanation:

If two gases are present in a container, the total pressure in the container is equal to the sum of the all the individual pressures exerted by the individual gases in a container.

Individual pressure exerted by the individual gas in a container is called partial pressure of that individual gas.

So, total pressure of gas in container is:

$p^o=p_a+p_b$

Where $p^o$ = Total pressure exerted by the gases in the container.

$p_a$ = Partial pressure of gas 'a'

$p_b$ = partial pressure of gas 'b'

Answer 2

The answer is a, because the question is referring to partial pressures. Partial pressures are a mere sum, no halving or doubling of anything is necessary.

So, A

Hope this helped :)