water at 100 kPa, 30 °C, enters a pump with a flow rate (m) of 18 kg/s with a velocity of 2 m/s. At the exit the corresponding properties are 1000 kPa, 30.1 °C, 18 kg/s, and 5 m/s.

Q: A 0.3 m^3 rigid tank receives paddle work at a rate of 4.5 W for 30 minutes. Initially, the gas has…

A:

Q: If you had a fixed mass of hot air stored in a rigid container and decided to transfer heat from the…

A:

Q: As shown in the figure below, water behind a dam enters an intake pipe at a pressure of 24 psia and…

A:

Q: (b) Water from a large tank, pressured using compressed air at 45 Bar, enters a nozzle having an…

A:

Q: Nitrogen (M=28.01 Ib/lbmol) gas flows in a convergent nozzle at 30 psia and 140 (°F) with negligible…

A:

Q: Determine the force in members CD and CE by method of section of the truss shown. If each member has…

A:

Q: a) The exit velocity b) The inlet to exit area ratio c) The inlet exit density ratio

A: Given that: Refrigerant R134a is flowing inside the diffuser. The diffuser is adiabatic, hence net…

Q: A pump discharges a liquid into a tank at the rate of 0.032 m³/s. The tank, 1.5 m in diameter and…

A:

Q: In turbochargers a turbine is directly connected to a compressor. The power harvested by the turbine…

A:

Q: 200Kg/min superheated steam at 40 bar and 350C enters a turbine through a 7.5cm ID pipe. It exits at…

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.