Asample of gas with a volume of 750 ml exerts a pressure of 98 kpa at 30◦c. what pressure will the sample exert when it is compressed to 250 ml and cooled to −25◦c?

241 kPa

Explanation:

The ideal gas law states that:

where

p is the gas pressure

V is its volume

n is the number of moles

R is the gas constant

T is the absolute temperature of the gas

We can rewrite the equation as

For a fixed amount of gas, n is constant, so we can write

Therefore, for a gas which undergoes a transformation we have

where the labels 1 and 2 refer to the initial and final conditions of the gas.

For the sample of gas in this problem we have

So we can solve the formula for , the final pressure:

gans

explanation:

vestigial organs (like your appendix) are organs that no longer serve a purpose.

2b2t

explanation:

2b2t