An aerosol can of air freshener is sprayed into a room. what happens to the pressure of the gas if it's temperature stays constant?

We can use the equation of state for an ideal gas to answer the question:

or, by rewriting it,

where p is the gas pressure, V its volume, T its temperature, n the number of moles of the gas and R the gas constant.

When the gas is sprayed from the can into the room, its volume V has increased, while n (the number of moles of the gas) stayed the same. Since R is a constant and the temperature T also stayed constant, if we look at the  formula we see that the numerator didn't change, while the denominator (V) has increased, so the pressure of the gas has decreased.

Efficiency is an action of doing something. for example when you take a test. good efficiency means you did well but bad effeciency or no effiency means you did bad.

It's have to be 12 or idk