Question

A sample of an ideal gas has a volume of 2.40 L at 286 K and 1.14 atm. Calculate the pressure when the volume is 1.09 L and the temperature is 304 K.

The answer i got is 2.8 atm

Answer 1

Since PV=kT,
P*1.09/304 = 1.14*2.40/286
P = 2.668

How did you get 2.8?