Each of the four cylinders of a new type of combustion engine has a displacement of 3.60 L. (The volume of the cylinder expands by 3.60 L each time the fuel is ignited and a piston moves out.)

(a) If each piston in the four cylinders is displaced against a pressure of 1.80 kbar and each cylinder is ignited once per second, how much work can the engine do in 1.00 min?

(b) Is the work positive or negative with respect to the engine and its contents?

(c) What is the change in internal energy of the system?