An ideal gas is compressed and cooled. For this process the entropy of the gas
a. Increases
b. Decreases
c. Stays the same
d. Cannot be determined from the information given
Thermodynamics
Ans :- b) Decreases
Explanation :-
If gas is compressed and cooled the temp is rises then n < (gamma) and entropy decreases
An ideal gas is compressed and cooled. For this process the entropy of the gas a....
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...
(5 pts) 15.A quantity of 2.0 moles of an ideal gas undergoes a reversible isothermal process (AT -0) at 120 K. In the process 80.0 J of heat energy flows out of the gas. In this process the entropy of the gas a decreases (b) stays the same (c) increases (5 pts) 16. In each cycle a heat engine receives 80.0 J of heat energy from the high temperature reservoir and rejects 30.0 J of heat energy into the low...
3.0 moles of an ideal gas at 2.1 atm is compressed and cooled from 35.3L and 28 °C to 17.6 L and 14 °C. What is the new pressure of the gas? 4.2 atm 2.0 atm 4.0 atm 2.1 atm
An ideal gas undergoes a constant pressure process that takes it from State 1 to State 2. The pressure of the gas is 144 kPa. During the process there is 304.0 J of heat transfer to the gas and the thermal energy of the gas increases so that Eth,2 - Eth,1 = 202 J. (a) Find the Work done on the gas during this process. J (b) By how much does the volume change? Please enter your answer as a...
An ideal gas undergoes a constant pressure process that takes it from State 1 to State 2. The pressure of the gas is 129 kPa. During the process there is 294.0 J of heat transfer to the gas and the thermal energy of the gas increases so that Eth,2 - Eth,232 J. (a) Find the Work done on the gas during this process (b) By how much does the volume change? Please enter your answer as a posi (c) The...
Consider a process in which an ideal gas is compressed to one-eighth of its original volume at constant temperature. Calculate the entropy change per mole of gas. As = [ ]xmol K)
A gas is compressed by an adiabatic process that decreases its volume by a factor of 2. In this process, the pressure In this process, the pressure a) increases by a factor of more than 2. b) increases by a factor of 2. c) does not change. d) increases by a factor of less than 2.
As a result of any natural process, the total entropy of any large system plus that of its environment A) never decreases. B) sometimes decreases. C) never increases. D) always stays the same
5) As a result of any natural process, the total entropy of any large system plus that of its environment A) never decreases. B) sometimes decreases. C) never increases. D) always stays the same.
Two mole of ideal gas, is compressed adiabatically in a piston/cylinder device from 2 bar and 25oC to 7 bar. The process is irreversible and requires 25% more work than a reversible, adiabatic compression from the same initial state to the same final pressure. What is the entropy change of the gas? Assume Cv=(5/2)R in this calculation.