Which statement about vaporization enthalpy and condensation enthalpy is correct?

Q: na heat exchanger an unknown gas with molecular weight of 30, K = 1.32 enters the eat exchanger at…

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Q: The benzene vapor at 580 ° C is cooled and transformed into a liquid at 25 ° C in a continuous…

A: Benzene vapour at 580 oC is cooled and converted to a liquid at 25 oC in a continuous condenser.…

Q: 14. Horizontal lines in phase change region on T-S diagram represents isothermal and constant…

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Q: The color of a white flame temperature is around O 1000 K 10000 K O 3000 K O 5000 K

A: Given The color of a white flame temperature is around  1000K  10000K  3000K  5000K Answer  1000K…

Q: Air at 40˚C and 55% RH is heated using a heat exchanger to reach 90˚C. using a psychrometric chart,…

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Q: B// What are the types of feed water heaters?, classify them according to their work nature and…

A: Given Feed water heater To find Types of heater Differentiation between the heater

Q: a light to be vaporizatio exchanger using 250 kPa steam of 90% quality. The heat losses to the…

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Q: A 110-volt electrical heater is used to warm 0.3 m3/s of water from 19oC to 98°C . Assume heat…

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Q: A Rankine cycle is executed with steam expanding initially from 20 MPaa and 150 deg SH. Condensation…

A: ASS per the guidelines I can solve only first three subparts. Repost the other parts.

Q: Does R134a suitable refrigerant in Cryogenic plant for liquid oxygen produduction? Explain, if not…

A: Cryogenic plant is used where we require cooling far below the zero degree centigrade so we have to…

Q: QUESTION 1 AW 1.1A boiler plant generate steam at a pressure of 13,5 bar and with a temperature of…

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Q: Which of the five groups of the primary refrigerants has the adverse impact on the environment?…

A: Primary Refrigerants: The primary refrigerants are the fluids that are directly used as a working…

Q: What are the Contact condensing systems? Explain their working.

A: Contact condensing systems: It is a device in which steam comes into contact with water. And this…

Q: Derive the equations as given below as applied to COOLER - DEHUMIDIFIER apparatus using the basic…

A: To derive: The equation for steady flow energy equation. Concept used: The steady flow energy…

Q: explain the total formation volume factor, Bt.

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Q: Define the natural tendency of water to evaporate in order to achieve phase equilibrium with the…

A: When at a particular temperature, the air's moisture content is less than the saturation point; the…

Q: What three major factors affect the hydrogenembrittling process?

A: Hydrogen embrittlement(HE) is a type of environmental assisted cracking(EAC) which  refers to…

Q: A Rankine cycle is executed with steam expanding initially from 20 MPaa and 150 deg SH. Condensation…

A:

Q: How does the Steam Pressure relates Steam Temperature in the boiler?

A: Steam pressure and steam temperature are directly proportional. As we know that in presence of…

Q: A Rankine cycle is executed with steam expanding initially from 20 MPaa and 100 deg SH. Condensation…

A: Note: As per our guidelines we are supposed to answer only the first 3 sub-parts. Kindly repost…

Q: 8) High chromium content in the austenitic stainless steel welds generally leads to Reduction in…

A: High chromium content is austenitic steel can lead to oxidation at high temperatures. The presence…

Q: What is the difference between Contact condensing systems and surface condensing systems?

A: Direct contact condensing systems /heat exchangers are commonly known as jet condensers. Here direct…

Q: A geothermal heat pump or 'ground source heat pump,' is a highly efficient renewable energy…

A: It is asked to design the heat pump based on the given design criteria Required heat demand = 12.3…

Q: Attemperator increases the higher heat absorption at high loads to ensure that the desired steam…

A: The given statement is true.

Q: When heating up a cold stream (5000 kg/h water) from 40ᵒC to 90ᵒC while cooling down a hot stream…

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Q: 1-why the heat exchanger are produce from stainless-steel? 2-what are the differentiation between…

A: Answer 1: The primary function of the heat exchangers is exchange the heat from hotter fluid to the…

Q: QUESTION 2 The refrigerant undergoes a change of phase during the heat-transfer process, the…

A: Since we only solve upto three subparts at a time, we will solve the first three. Please specify the…

Q: What is the carbon content of lignite coal?

A: The lignite is brownish in color which is generally used in the steam power plant for the…

Q: subcooled? Determine (b) the volume flow rate, and (c) the

A: Given: Refrigerant R22 Condenser temperature=42oC Evaporating temperature =0oC   To determine:…

Q: To prevent the over heating of superheater tubes , it is necessary to have اخترأحد الخيارات a. Low…

A: Uniformly distributed steam flow is necessary , so that superheater tubes do not overheat.

Q: Why should you agitate the part or the quenching medium when cooling a part?

A: quenching is the process of rapid cooling in water , oil or water or some medium to get desired…

Q: 24 Hexane C,H,u is used for fuel in a CI engine at an air-fuel ratio AF = 25. Hexane has a specific…

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Q: Question: Which of the following material cannot be used as a moderator?

A: To select the correct option.

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.