An ideal gas is at a pressure of 1.4 atm and has a volume of 3 l. if the gas is compressed to a volume of 1.0 l while its temperature is held constant, what is the resulting pressure to the nearest tenth of an atm?

The resulting pressure is 4.2 atm. Since it's an ideal gas we use the ideal gas equation to calculate the final pressure.

Explanation:

p.v=n.R.T

This applies to both initial and final conditions of the gas, since the temperature is held constant:

And using this equation we find the value of pressure: