A pump was used to compress the gas in a tube. As the volume of the gas decreases, the pressure of the gas increases.
(a) One of the student's results is given below.
pressure = 1.6 x 10^5 Pa
volume = 9.0 cm3
Calculate the volume of the gas when the pressure was 1.8 * 10^5 Pa.
The temperature of the gas was constant.
Volume =
cm3
(3)
(Total 11 marks)

What are atoms of the same element with varying number of neutrons

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.