Mechanical work is especially important in systems that contain

When a bottle of perfume is opened in a closed room of $1000\,m^3$,the fragrance spreads throughout the room. Which property of gases is responsible for this?

If a saturated vapor is slowly compressed (at constant temperature) to half of its initial volume,what happens to the vapor pressure?

Air contains $70\% \, N_2, \, 20\% \, O_2$ and $1\% \, CO_2$ by volume. If the total pressure of air is $1 \, bar$,find the partial pressure of $N_2, O_2$ and $CO_2$.

What is the boiling point?

Assertion: Standard boiling point of a liquid is slightly higher than the normal boiling point. Reason: $1 \ bar$ pressure is slightly less than $1 \ atm$ pressure.