Question

PLEASE HELP!CHEMISTRY QUESTION

On Venus the atmospheric pressure is 2700 mmHg and nitrogen gas makes up 3.0 % of the atmosphere. What is the partial pressure of nitrogen on Venus? mmHG

Answer 1

Answer: The partial pressure of nitrogen on Venus is 81 mmHg

Explanation:

To calculate the partial pressure of the gas, we use the equation given by Raoult's law, which is:

$p_{A}=p_T\times \chi_{A}$

where,  

$p_A$ = partial pressure of nitrogen gas = ?

$p_T$ = total pressure = 2700 mmHg

$\chi_A$ = mole fraction of nitrogen gas = 3.0 % = 0.03

Putting values in above equation, we get:

$p_{N_2}=2700mmHg\times 0.03\\\\p_{N_2}=81mmHg$

Hence, the partial pressure of nitrogen on Venus is 81 mmHg