A 2.64-kg copper part, initially at Tc = 250oC, is plunged into a tank containing 4 kg of liquid water, initially at Tw = 25oC. The copper part and water can be modeled as incompressible with specific heats cc = 0.385 kJ/kg·K and cw = 4.2 kJ/kg·K, respectively. Use the copper part and water as the system. Ignore heat transfer between the system and its surroundings. Determine the final equilibrium temperature Tf, in oC, and the amount of entropy produced within the tank, in kJ/K.

Q: 2 A dividing wall divides an insulated container into two compartments as shown in the figure.…

A: please refer handwritten solution

Q: Steam enters a nozzle at 350C and 800 kPa with a velocity of 12 m/s, and leaves at 250C and 200 kPa…

A: Initial pressure P1 = 800 kPa Initial temperature T1 = 350 C Initial velocity V1 = 12 m/s Inlet area…

Q: QUESTION 1 (a) The air inside a 0.2 m² piston-cylinder device initially at 600 kPa. After heated up…

A:

Q: A device submitted to the Pa- tent Office is shown schemati- cally in the figure to the right. Its…

A: To determine if steady-state operation of this device is thermodynamically permissible, we need to…

Q: Air, 5.37 kg, is compressed in a piston‑cylinder device from 91.3 kPa and 65.3 ∘C to 195.2 kPa in an…

A:

Q: Calculate the boundary work done by the system during this process

A:

Q: Shown in the figure, an insulated rigid tank is divided into two equal parts by a partition.…

A: Giveninsulated tankm=4kgP1=600kPaT1=300KR=0.287 kJ/kgKCv=0.7180 kJ/kgK∆U=mCvT2-T1

Q: Subcooled water at 5°C is pressurised to 350 kPa with no increase in temperature, and then passed…

A:

Q: Air, 5.37 kg, is compressed in a piston‑cylinder device from 91.3 kPa and 65.3 ∘C to 195.2 kPa in an…

A:

Q: A rigid container contains m = 3 kg of air. The air changes from an initial state of P1 = 0.5 MPa…

A:

Q: it is desired to understand the time - temperature behavior of a hot copper sphere. the sphere has a…

A: it is desired to understand the time - temperature behavior of a hot copper sphere. the sphere has a…

Q: A steam turbine operates with 1.6 MPa and 350 deg C steam at its inlet and saturated vapor at 30 deg…

A:

Q: Water, assumed to be a perfect liquid, has a density of 1000 kg/m³ and a specific heat of 4184…

A: Given: For water Initial Pressure P1=100 kPa Final Pressure P2=1000 kPa Density ρ=1000 kg/m3…

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.