A closed system contains 3 kg of R-134a, initially at 10 C and 90 kPa (State 1), and undergoes an internally reversible, isothermal process until the volume of the R-134a reaches 0.056 m3 (Stage 2). The system returns to State 1 by an irreversible process and the heat transfer for the return process is 3.2 kJ. Determine Q12, W12, W21, and

The bubbles in a carbonated soft drink are produced when carbonic acid decomposes to form carbon dioxide and water. in a closed system, this equilibrium exists as why does a carbonated soft drink lose carbonation when the container is left open? a.water evaporates, which favors the formation of h2co3. b.pressure decreases, which favors the formation of h2co3. c.the open container warms up, which causes more gas to escape. d.co2is removed, which favors the formation of h2co3.