True or False: If some system undergoes a reversible, isothermal
process, then its entropy must remain constant.
True or False: If some system undergoes a reversible, isothermal process, then its entropy must remain...
1. If a system undergoes a reversible process, a it must be possible to restore the system to its original state. b it must be possible to restore the surroundings to their original state. c it must be possible to restore both the system and the surroundings to their original states. d it is impossible to restore either the the system or the surroundings to their original states. e the system must not interact with its surroundings. 2. According to...
c) A closed system undergoes a process for which the system entropy is constant (S2 S) Must the process be internally reversible? Explain your answer. THERMODYNAMICS d) Saturated water vapor at 5 bar undergoes a process in a closed system to a final state of 10 bar and 200°C. Can the process occur adiabatically? Explain your answer.
Which one has a larger final entropy, reversible isothermal process or reversible adiabatic process when expanding to the same final volume for an ideal gas?
True or False (Problems 1 through 10) 1. The change in entropy of a closed system is the same for every process between two specified states 2. The entropy of a fixed amount of an incompressible substance increases in every process for which temperature increases 3. A process that violates the second law of thermodynamics violates the first law of thermodynamics. 4. When a net amount of work is done on a closed system undergoing an internally reversible process, a...
A gas sample undergoes a reversible isothermal expansion. The figure gives the change AS in entropy of the gas versus the final volume Vf of the gas. The scale of the vertical axis is set by ΔSs = 73.7 J/K. How many moles are in the sample? 0.8 1.6 2.4 3.2 4.0 Vy (m3)
During a reversible isothermal expansion, the entropy of an ideal gas: a) decreases b) stays constant c) increases When dry ice sublimes into gas at 194.65 K and 1 atm, the entropy a) increases b) stays constant c) decreases Which one of the following is true? a) The entropy of an isolated system can only stay constant or increase during a process b) We can construct a heat engine that extracts heat from a hot reservoir and delivers an equal...
One mole of an ideal gas undergoes a reversible isothermal expansion from a volume of 1 L to a volume of 2 L. The change in entropy of the gas in terms of the universal gas constant R is? Final Answer is R ln(2), but I need to know how to calculate this
Calculate the entropy change of the system for a reversible and irreversible isothermal compression of oxygen gas. The initial pressure of the gas is 1 bar in a volume of 100 L. The final pressure of the gas is 10 bar and the temperature is 400 K.
In an isothermal and reversible process, 945 J of heat is removed from a system and transferred to the surroundings. The temperature is 314 K. What is the change in entropy of the system? Justify your answer. A) –3.01 J/K B) +3.01 J/K C) –0.332 J/K D) +0.332 J/K E) +2.97 × 105 J/K
Indicate whether each statement is true or false. (a) The entropy of the universe increases for any spontaneous process. (b) The entropy change of the system is equal and opposite that of the surroundings for any irreversible process. (c) The entropy of the system must increase in any spontaneous process. (d) The entropy change for an isothermal process depends on both the absolute temperature and the amount of heat reversibly transferred.