1.

An ideal gas whose number of moles n = 19 moles is at a temperature of T = 25 C. The gas undergoes isothermal expansion. The final volume of the gas is 5 times the initial volume. How much work is done by the gas? Please round your answer to the nearest whole number (integer).A thermodynamic system {take y = 1.5} undergoes the three processes shown in the diagram: (A } 3, Bet; and c e A}. P; = 1.1 2.: 1o5 Pa, P3 = 11.2.3: 1o5 Pa, y... = ooa m3, \"y\": = CLUB m3. What is the thermal efciency of the system [please express your answer as percent? Please round your answer to one decimal place. Pressure Jul | I | I 3D- I") V V: Volume An ideal gas (take y= 1.5) undergoes a cycle which consists of three processes as shown below. Process 1 - 2 is an isochoric (constant volume) process, process 2 -> 3 is an adiabatic process, and proces 3 - 1 is an isobaric process. Find the total work (net work) done by the cycle given that P, = 2.0 x 10 Pa, P, = 54.0 x 10" Pa, P, = 2.0 x 10" Pa, V, = 0.80 m , and V, = 0.80 m . Pressure 2 P, 1 + - - Volume