Multiple ChoiceAn ideal gas is taken through the four processes shown below. The changes in internal energy for three of these processes are as follows:ΔEAB = +82 J; ΔEBC = +15 J; ΔEDA = –56 J. Find the change in internal energy for the process from C to D.424Has a video solution.
Textbook Question0.25 mol of a gas are compressed at a constant pressure of 250 kPa from 6000 cm^3 to 2000 cm^3, then expanded at a constant temperature back to 6000 cm^3. What is the net work done on the gas?Has a video solution.
Textbook QuestionA gas following the pV trajectory of FIGURE EX21.11 does 60 J of work per cycle. What is Vₘₐₓ?
Textbook QuestionA heat engine using a diatomic gas follows the cycle shown in FIGURE P21.55. Its temperature at point 1 is 20℃. a. Determine Wₛ, Q, and ∆Eₜₕ for each of the three processes in this cycle. Display your results in a table.
Textbook QuestionA heat engine uses a diatomic gas that follows the pV cycle in FIGURE P21.59. a. Determine the pressure, volume, and temperature at point 2.
Textbook QuestionThe heat engine shown in FIGURE P21.62 uses 2.0 mol of a monatomic gas as the working substance. a. Determine T₁, T₂ and T₃.1
Textbook QuestionThe heat engine shown in FIGURE P21.63 uses 0.020 mol of a diatomic gas as the working substance. b. Make a table that shows ∆Eₜₕ, Wₛ, and Q for each of the three processes.
Textbook QuestionA heat engine using a diatomic ideal gas goes through the following closed cycle: Isothermal compression until the volume is halved. Isobaric expansion until the volume is restored to its initial value. Isochoric cooling until the pressure is restored to its initial value. What are the thermal efficiencies of (a) this heat engine and (b) a Carnot engine operating between the highest and lowest temperatures reached by this engine?
