Why can gases and liquids both transmit heat by convection? a. their particles are free to move away from each other b. they both have a fixed volume c. they both contain charged particles d. their particles both vibrate around fixed positions

A1.50-liter sample of dry air in a cylinder exerts a pressure of 3.00 atmospheres at a temperature of 25°c. without changing the temperature, a piston is moved in the cylinder until the pressure in the cylinder is reduced to 1.00 atmospheres. the volume of the gas is