A 7 kg glass bowl contains 16 kg punch at 25 °C. 2.5 kg of ice are added to the punch. The ice has an initial temperature of -20 °C, having been kept in a very cold freezer. The punch may be treated as if they were water, and it may be assumed that there is no heat flow between the punch bowl and the external environment. Determine the final temperature of the mixture.

Q: ated liquid-vapor mixture of water at 225 kPa. Initially, one-quarter of the m ce, and a current of…

A: Given that ,  m=5.6kgmvapour+mliquid=5.6kg Initially ,  mliquid=0.25m=1.4kgmvapor=4.2kgx=4.25.6=0.75

Q: The specific volume of water at 30 psia and 250.34 F (saturation) is 0.017004 cubic feet per pound…

A:

Q: why water evaporates at constant pressure at constant temperature, and how the temperature is when…

A: Let us discuss about constant pressure and constant temperature phase  change.

Q: A compact device containing 1 m³ nitrogen gas with 300 kpa pressure and a temperature of 30°c. A…

A: According to first law of thermodynamics for a closed cycle the summation of heat supplied or…

Q: In the air conditioning process in the humidifier, the air at a dry bulb temperature of 20 degrees…

A: Initial Condition of air, =20oC and 35% RH  Final humidity of air, =50% RH

Q: One mole of an ideal gas initially at a temperature of Ti = 4.2°C undergoes an expansion at a…

A:

Q: If the quality of a liquid-vapor mixture is 0.8 and the total mass of the mixture is 18 kg, what is…

A:

Q: In an aluminum pot, 0.796 kg of water at 100 °C boils away in four minutes. The bottom of the pot is…

A: Given data as per the question Mass of aluminum pot =0.796 kg Temperature of water =1000 c Latent…

Q: An ice pop mold is filled with a hot (80°C) mixture of jelly and fruit juice, and placed in a -20 °C…

A: Given:Th=80°CTc=-20°Ct=12 hours

Q: Humid air at constant 101 kPa pressure, 30°C temperature and 40% relative humidity undergoes an…

A:

Q: We have a 7.5kg air parcel with a mixing ratio of 6.2g kg-1. The parcel is lifted to its LCL (lifted…

A:

Q: Wet sawdust will be dried using air on a circular tray with a diameter of 10 cm and the variation of…

A: Given Data :  Diameter = 10cm Heat transfer coefficient = 0.64 cal/min.cm2  mass transfer…

Q: magine that we have a sample of nitrogen gas confined to a cylinder by a movable piston. The…

A: The given question includes three processes which are- Process 1-2: Adiabatic compression of the gas…

Q: A rigid tank contains 2kg of saturated water vapor mixture at temperature of 50 degrees C and…

A:

Q: Soaked sawdust will be dried using air on a circular tray with a diameter of 10 cm, and the change…

A:

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.