Methane at 2760 kPa and -6.31 °C is compressed in steady-state adiabatic compressor (85% efficient) to 11.5 MPa and 251 °C. Determine : (a) How many kW are required if the flow is to be 17.5 kmol/hr (b) The rate entropy generation in Joules per second and degrees K.

Q: Methane at 2760 kPa and -6.31 ℃ is compressed in steady-state adiabatic compressor (85% efficient)…

A:

Q: Liquid propane at 1.3 MPa, 36°C, and a flow rate of 0.18 kg/s goes through an expansion valve into a…

A:

Q: Q4. Five kilograms of saturated vapor water at 1Mpa is contained in a cylinder fitted with a movable…

A: Givensaturated vapourm=5 kgP1=1MPaT1=300oC

Q: 1 kg of air is compressed isothermally and reversibly from l bar and 30°C to 5bar. Calculate the…

A:

Q: A 60,000 BTU/hr compressor is used to compress air. The air temperature is maintained at a constant…

A: Given Wc=60000 BtuhrProcess IsothermalThe air temperature maintained at  T= 80°FThe surrounding…

Q: Fifty grams of air is compressed from 100kpa and 25 degree Celsius to 1400 kpa in a reversible…

A: Note: As per our guidelines we are supposed to answer only the first 3 sub-parts. Kindly repost…

Q: Q3/ 0.34 m' of a perfect gas at constant pressure of 2.8 bar is heated from 100°C to 300°C and it is…

A:

Q: Oxygen enters an insulated 12-cm-diameter pipe with a velocity of 50 m/s. At the pipe entrance, the…

A:

Q: Please answer this question correctly. Mechanical engineering -thermodynamics. (1)Heat in the amount…

A:

Q: R-134a is initially at 600 kPa and 25°C. It undergoes a process during which the entropy is kept…

A:

Q: Calculate the change in specific entropy of air undergoing a process from a temperature of 300 K and…

A:

Q: 1 kg of AIR at P = 100 kPa is contained in a RIGID TANK made of IRON of mass 0.5 kg. Initially, the…

A: Solution:

Q: n ideal gas of 0.12 m3 is allowed to expand isentropically from 300 kPa and 120°C to 100 kPa, 5 kJ…

A: The initial volume is .The initial pressure is .The initial temperature is .The pressure after…

Q: Water in a closed rigid tank, initially at 689 kPa, 427 oC is cooled to a final state of 138 kPa.…

A:

Q: A compressor (300 W) increases air pressure from atmospheric to 2,000 kPa. As the compressor…

A: as given that the outer casing is heated so the process is not adiabatic.

Q: Deduce Clausius inequality and interpret it.

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: Air in a piston expands from 8 MPa to 150 kPa. The initial piston volume and temperature are 0.05 m3…

A:

Q: Hi, can you please help me with this entropy problem?

A: (a) Entropy generation is 0 .(b) Entropy generation is −2kJ/K .Explanation:Initial condition,Volume…

Q: a closed system contained a copper block of density 9.96g/cm3 at 25 degrees celsius in reversible…

A:

Q: Draw Pv and Ts diagram of reversible isentropic process. Write the relationship between…

A:

Q: Starting with the First Law of Thermodynamics, derive the complete expression for the change in…

A: The expression for the 1st law of thermodynamics is given as, dQ=du+dWdQ=du+pdv Here, du is the…

Q: It is required to compress steam isentropically from 250 kPa to 2.5 MPa, assuming that the steam…

A:

Q: Heat in the amount of 100 kJ is transferred directly from a hot reservoir at 1350 K (TH) to a cold…

A:

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.