wo aluminum ingots, one weighing 1.5 kg at 450 degrees celsius while the other is 1.1 kg at 250 degrees celsius, are placed in an insulated enclosure. assuming there is no heat transfer from the ingots to the enclosure material, determine the final temperature and the entropy associated with the process.

Q: A piston-cylinder device contains a saturated water. During a constant- pressure process, 538 kJ of…

A: Given dataHeat transferred to the surroundings Q = 538kJTemperature of the surrounding T = 230 =…

Q: heats and neglect the changes in kinetic and potential energies. rmine the exit temperature of air…

A: Given data as per question P1=95 kPa, T1=27° C=300 KP2=600 kPa, T2=277°C=550 K

Q: An iron horseshoe of mass 1.47 kg is taken from a furnace at 660 ◦C and dropped into 1.83 kg of…

A:

Q: 50 grams of water at 20ºC is converted into steam at 250ºC at constant atmospheric pressure.…

A: The temperatures during the process are, The average temperature of steam is The specific heat of…

Q: A 66-kg copper block initially at 140°C is dropped into an insulated tank that contains 90 L of…

A: The basic concept is that the total change in internal energy will be zero.

Q: A piston-cylinder device contains 0.66 kg of nitrogen gas at 140 kPa and 37°C. The gas is now…

A:

Q: A 30-kg iron block initially at 280°C is quenched in an insulated tank that contains 100 kg of water…

A:

Q: A gas compressed adiabatically from the initial pressure and temperature of 100 kN/m? and 36 °C…

A: we are suppose to solve only 3 subparts, please  post other parts as separate question.

Q: wo blocks A (cp=0.9 KJ/kg-K) and B (cp=0.38 KJ/kg-K) which are initially at 95°C and 540°C,…

A: Initial temperature of block A (T1) = 95 C or 368 K Initial temperature of block B (T2) = 540 C or…

Q: Steam at a temperature of 210C has a specific entropy of 7.1167 kJ/kg-K. Determine the pressure,…

A: We need to use steam table to find the pressure, internal energy, enthalpy and volume as the…

Q: A diatomic gas in 15-L rigid container at 25 ⁰C and 4.8 atm is heated to 40 ⁰C. Determine the change…

A:

Q: Water is contained in a closed rigid tank at an initial pressure of 1200 kPa. Heat transfer occurs…

A: Given data: -  The initial pressure is P1 = 1200 kPa. The final pressure is P2 = 7 MPa. The mass of…

Q: Hydrogen is stored in a tank (volume is 2.0 m) at a pressure of 500kPa and a temperature of 300K. A…

A:

Q: Dry saturated steam at p1 = 3.5 MPa is contained in a cylinder-piston arrangement. It is brought…

A:

Q: Air is expanded from 200 psia and 500°F to 100 psia and 50°F. Assuming constant specific heats,…

A:

Q: In Prob, assume that the heat is transferred from the cold reservoir to the hot reservoir contrary…

A: Given data

Q: 3. A 2 kg mass of oxygen expands at a constant pressure of 172 kPa in piston-cylinder system from a…

A:

Q: A hot-water stream at 70C enters an adiabatic mixing chamber with a mass flow rate of 3.6 kg/s,…

A: To calculate the mass flow rate of cold water and rate of entropy generation during this…

Q: The inner and outer surfaces of a 4-m × 10-m brick wall of thickness 20 cm are maintained at…

A: Given: The inner surface temperature of the brick wall is T1 = 16 °C. The outer surface temperature…

Q: Heat flows through a wall of a house at a steady-state on a day when the temperature of the outdoor…

A: From the given data,the question asked for total entropy generation. For that take inside and…

Q: A pressure relief valve is installed in a rigid 25-L steam cooker to release vapor and maintain…

A:

Q: Consider an isothermal expansion of 2 lb/sec of air from 100 psia and 90°F to 15 psia. If the…

A:

Q: Seven kilograms of air is contained in a constant volume tank at 327 degrees C and 120 kPa, then is…

A: Calculate the entropy change of the air.

Q: A rigid container contains 10 kgs of air at 100 kPa and 22°C. A 1-kW heater is placed in the…

A: Given data:- A rigid container mass of air =10 kg Pressure =100 kPa Temperature =22 °C =295 K…

Q: If you know that the change in entropy of a system where heat was added is 12 J/K, and that the…

A: To Find :  The amount of heat added to the system . Given : The change in entropy is ∆s=12 Jk. The…

Q: An ideal gas has a molecular mass of 25.1 kg/kgmol is heated at a constant volume from 120°C to…

A:

Q: Consider a closed, isolated system that consists of two substances 1 and 2 that both have constant…

A:

Q: Determine the change in the entropy of air, in kJ/kg-K, as it undergoes a change of state from 100…

A: The initial pressure is .The initial temperature is .The final pressure is .The final temperature is…

Q: A rigid tank is divided into two equal parts by a partition. One part of the tank contains 2.5 kg of…

A: To find: The entropy change of water during the process. Given  The mass of compressed liquid m=2.5…

Q: A 15-ft3 steel container that has a mass of 75 lbm when empty is filled with liquid water.…

A: To find-: The total entropy generated during the process ∆S. Given-: The volume of container is V=15…

Q: A rigid insulated chamber of volume 2 m3 is divided into 2 equal parts by diaphram.One half of…

A: Given: The total volume of the chamber, V=2 m3 R=0.287 KJ/kg K T1=300 K P1=200 KPa

Q: An insulated rigid tank is divided into two equal parts by a partition. Initially, one part contains…

A: Given data: N=14.5 kmolP1=330 kPaT1=50°C Need to determine the total entropy change during this…

Q: An iron horseshoe of mass 1.47 kg is taken from a furnace at 660 ◦C and dropped into 1.83 kg of…

A: Given:  m1=miron=1.47 kgT1=660°Cm2=mwater=1.83 kgT2=8.5°Cc2=cw=4186 J/kg.Kc1=ciron=448 J/kg.K

Q: An insulated tank contains 5 kg of water at a pressure of 75 kPa and 40% of its mass is in the vapor…

A:

Q: Steam at a temperature of 210°C, has a specific entropy of 7.1167 kJ/kg-K. Determine the specific…

A:

Q: Saturated Steam at 0.16 Mpa is compressed in an irreversible adiabatic process with an efficiency of…

A: Given, P1 = 0.16 MPa P2 = 0.45 MPa And efficiency is given as 80.24 %

Q: A piston is inserted into a cylinder causing the pressure in the air to change from 50 to 4000 kPa…

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.