One liter of a gas is in a sealed chamber containing a moveable piston. If the piston is moved so that the volume of the gas is compressed to a volume of one-half liter, what will happen to the pressure on the gas? (Assume the temperature is constant and no gas particles are lost.)
A) The pressure will remain the same.
B) The pressure will be half of the original value.
C) The pressure will be twice the original value.
D) It would be impossible to move the piston since gases are not compressible.
E) none of the above
Answer: C