At 100°C water has a specific latent heat of vaporization of 2260 000 J/kg. What does this mean? A. Energy needed to turn 1 kg of water into ice B. 2260 000 J energy needed to turn 1 kg of ice into water C. 2260 000 J of heat is needed to boil 1 kg of steam into ice D. 2260 000 J of heat is needed to convert 1 kg of steam into water

At 100°C water has a specific latent heat of vaporization of 2260 000 J/kg. What does this mean? A. Energy needed to turn 1 kg of water into ice B. 2260 000 J energy needed to turn 1 kg of ice into water C. 2260 000 J of heat is needed to boil 1 kg of steam into ice D. 2260 000 J of heat is needed to convert 1 kg of steam into water

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.19P

See similar textbooks

Similar questions

how many pounds of ice can a 20 ton ice plant produce in 24 hrs at 5 deg F from raw water at 80 deg F?
An A/C plant is designed for a room with the following conditions: outdoor conditions 40 F db / 60% r.h., requiredindoor conditions 70 F db / 50% r.h., amount of air circulation 15 ft^3/min/person, room capacity 50 people. Therequired condition is achieved first by heating and then by adiabatic mixing. Show the pro cess on an e-version ofa psych-chart, and thus determine the following:a. Heating capacity of the coil (BTU/min)b. Capacity of the humidifier (lbm/min)
1 atm steam (sat.) preheats CO2. If 2.26 MJ heat is released from 1kg of condensing steam, How much saturated steam is needed to condense to that 21 kg/s CO2is preheated from 303.15 K to 353.15 K? Cp CO2 = 4.5R, where R = 8.314 J/mol K. a. 0.40 kg/s b. 0.36 kg/s c. 0.30 kg/s d. 0.18 kg/s
1- what's is the main benefit for the cooling tower packages . 2- compare the value of heat that rejected from water with the heat adding to the air and explain the Couse of difference . 3- make a search about cooling tower deals with the following items , a) the kind of cooling tower ., b) the problems that resisted the work of the cooling tower . c) define the approach and pointed the condition that deepened on .
25 - What is the temperature of refrigerant 134a with a pressure of 1072.8 kPa and a degree of dryness of 1? a) 80°C B) 52.4°C NS) 39.37°C D) 42 °C TO) 63°C
Dumping Heat into a River A town is considering building a new gas fired steam power to provide 500 MW of electrical power. The town considers whether they can use the town's river for cooling purposes. a state of the art power plant will have a thermal effeienct of 58%, the lowest mass flow of river water is 105 t/s, and to protect nature, the average increase of water temperature should be below 275 K. Determine the temperature change of the river in the worst case. Cna they use their river for cooling, or should they build a cooling tower? specific heat of water is Cw = 4.18 kJ/kg-K
How much energy (in Joules) is required to fully melt 20g of ice taken from the freezer at - 5 degree C (negative 5 C), put on a stove and gently heated until fully molten?
It is required to analyze the operation of an Electric Power Plant called EcomEnergy S.A, the main operator and manager of the plant need to hire a mechanical engineer to calculate the following:a) The reheating temperature so that the output of turbine 1 is saturated steam (high quality mixtures are not allowed).b) For this reheating process, the total power output of the turbines must be calculated.c) The total heat transfer of the boiler.d) Make the T vr S Diagram, include all possible states (1,2,3,4…) and temperature and pressure data.Ecom Energy produces steam at 3 MPa, 600°C in the boiler. In addition, it maintains the condenser at 45°C by transferring 10 MW as heat output.In turbine 1 an expansion is carried out up to 500 kPa and then the flow is reheated, followed by expansion in low pressure turbine 2.
what is the heating value of oil in BTU/lbm at 27 degree API
PELASE ANSWER IT in 15 mins show sln step by step. THERMODYNAMICS
The sensible and latent heat gains to a room are 10 kW and 1 kW, respectively. The occupancy of the room is 12 people and the minimum fresh air allowance is 12 Li/s for each person. The outside summer design state is: 28ᵒC dry-bulb, 19.5 ᵒC wet bulb, 10.65 g/kg dry air. The room state is: 22 ᵒC dry-bulb, 50 percent saturation, 8.366 g/kg dry air, 43.39 kJ/kg dry air. Select a suitable air state, specify the states on and off the cooler coil and calculate the design cooling load. Analyse and check the cooling load. The temperature rise through the extract system is estimated as 0.5 ᵒC. A low velocity supply system is to be adopted and the temperature rise for supply fan power and duct heat gain is estimated 2ᵒ. Minimum fresh air requirement Plot the process on the psychrometric chart Determine the SHR. Contact Factor & Bypass Factor Total Cooling load.
The sensible and latent heat gains to a room are 10 kW and 1 kW, respectively. The occupancy of the room is 12 people and the minimum fresh air allowance is 12 Li/s for each person. The outside summer design state is: 28ᵒC dry-bulb, 19.5 ᵒC wet bulb, 10.65 g/kg dry air. The room state is: 22 ᵒC dry-bulb, 50 percent saturation, 8.366 g/kg dry air, 43.39 kJ/kg dry air. Select a suitable air state, specify the states on and off the cooler coil and calculate the design cooling load. Analyse and check the cooling load. The temperature rise through the extract system is estimated as 0.5 ᵒC. A low velocity supply system is to be adopted and the temperature rise for supply fan power and duct heat gain is estimated 2ᵒ. Solve for the following: 1. Minimum fresh air requirement2. Plot the process on the psychrometric chart3. Determine the SHR.4. Contact Factor & Bypass Factor5. Total Cooling load.