A woman informs an engineer that she frequently feels cooler in the summer when standing in front of an open refrigerator. The engineer tells her that she is only “imagining things” because there is no fan in the refrigerator to blow the cool air over her. A lively argument ensues. Whose side of the argument do you take? Why

Q: Q5) In a certain experiment, cylindrical samples of diameter 4 cm and length 7 cm are used. The two…

A:

Q: Its not a graded Questions why u reject it

A: since we are missing  biot number and fourier number we have it firstly , Bi=hLc/k, where Lc is…

Q: Question 6: Find the required length of a 5 cm-diameter tube to heat water from an inlet temperature…

A: Given data: Diameter of the pipe, d=5 cm=0.05 m Let 'L' be the length of the pipe. Inlet temperature…

Q: МЕСН 2344 QUIZ 3 Buring steady-state operation, a gearbox receives 60 kw through the input shaft and…

A: Given data: Heat received by the gear box = 60 kW Heat transfer coefficient = 170 W/m2.K Outside…

Q: (a) A freezer maintains an interior temperature inside of -30.0°C and has a coefficient of…

A: Coefficient of Performance: It is defined as the ratio of the desired effect to the power input It…

Q: It is a hot day in Atlanta and you and your friends bought an ice cream maker. The unit consists of…

A: To obtain the solution of the above question, we will apply the 1st law of thermodynamics and is…

Q: How does the average velocity of pedestrians in a city vary with the population size?

A: Given Pedestrian To find Change in average velocity of pedestrian in a city with the population size

Q: A group of twenty executive measures 20 ft by 20 ft and has a 10 ft ceiling. Assume that each person…

A: Given:l=20 ftb=20 fth=10 ftVe=2.5 ft3Qe=375 Btu/hrt=15 mincv=0.1715 Btu/lbm°F

Q: ) Briefly discuss the influence of clothing on human comfort. How is the effect of clothing…

A: intro- clothing is act as a barrier for heat transfer from body to surrounding or surrounding to…

Q: The Ocean Thermal Energy Conversion (OTEC) system in Hawali utilizes the surface water and deep…

A:

Q: Calculate the hourly heating load of a house in which all exterior surfaces have a thermal…

A: Given   Thermal resistance, R = 14 ft2.h.oF/Btu           Temperature, T1 = 65oF…

Q: How to predict the detailed thermal properties of specific physical systems ?

A: Thermal properties When applied to solid bodies, thermal properties are defined as: Material's…

Q: 8.74. A plate of aluminum which has become heavily oxidized over a period of time is placed in a…

A: now , Writing the expression for the heat balance equation,  h(TP-T∞) =σ∈(T4-TP4)Here , h is the…

Q: 31. The rate of heat conduction out of a window on a winter day is rapid enough to chill the air…

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Q: Max likes to drink tea. He uses his kettle to heat 1.6 liters of water from 18°C to 100°C every day.…

A: Heat transfer: the transfer of heat from one body to another body due to the temperature differences…

Q: 01. A large plane wall, 7.5 cm thick, generates heat internally at the rate of 10$ W/m³. One side of…

A: Given: The thickness of the wall, t = 0.075 m The rate of heat generation, q = 105 W/m3 The…

Q: On a summer day in Phoenix, Arizona, the inside room temperature is maintained at 68° F while the…

A: Given, TiF = 68 °FToF = 110 °F Here, o and i subscripts represent outdoor and indoor temperatures…

Q: The immediate surroundings of a hot potato are simply the temperature gradient zone of the air next…

A: SYSTEM: It is a fixed mass or region in space where our study is focused. SURROUNDINGS :Everything…

Q: Consider a heat transfer situation. Heat flows from the hot item or area to the cold item or area.…

A: Here situation is given of two objects hot object and cold object. The heat transfer between two…

Q: What is the temperature of a system in thermal equilibrium with another system made up of water and…

A: A system is said to be anything under study. A surrounding is anything that is external to the…

Q: The nodal diagram shown is of a section of a flat plate with thermal conductivity of 51 W/m K. The…

A:

Q: Bakery ABC produces two products, butter cake, and chocolate cake. The sales volume for butter cake…

A:

Q: Two industrial steel pipes are carrying 200 °C steam. The internal diameter of both pipes are 2.0 cm…

A:

Q: What will happen to the rate of heat transfer? ZAH Difference between inside and outside…

A: Given questions are related to heat transfer. We have to find out if heat transfer will increase,…

Q: On a summer day, in Phoenix, Arizona, the inside room temperature is maintained at 20° C while the…

A: Given data as per question Inside temperature =200cOutside air temperature=43.30c

Q: The initial concept of this elevator setup is shown in Figure 1. The elevator E and the objects…

A:

Q: A classroom that normally contains 40 people is to be air-conditioned with window air- conditioning…

A: Given Data: The cooling capacity of the air conditioner is 5 kW

Q: 16. The roof of an electrically heated home is 6 m long, 8 m wide, and 0.25 m thíck, and is made of…

A: a.

Q: Two large containers A and B of the same size are filled with different fluids. The fluids in…

A: Answer: The metal bar will take 7.16683 min to reach 99.6℃ from the start of the process.

Q: A radioactive sphere of 20-cm diameter generates heat at the rate of 300 W. It is cooled by placing…

A:

Q: Two industrial steel pipes are carrying 200 °C steam. The internal diameter of both pipes are 2.0 cm…

A: First option is correct.

Q: SANAE IV, a research station of The South African National Antarctic Programme (SANAP), is located…

A: Given: The temperature of science lab, T2 = 307.8 K The heat supplied to lab, Q2 = 17360 J The work…

Q: The nodal diagram shown is of a section of a flat plate with thermal conductivity of 56 W/m K. The…

A:

Q: The rate of heat conduction through a plane wall is proportional to the average thermal…

A: The rate of heat conduction through a plane wall is proportional to the average thermal…

Q: Unreasonable Results - A slightly deranged Arctic inventor surrounded by ice thinks it would be much…

A: The volume of gasoline is V=1 gal=1 gal×m3264 gal=3.787×10-3 m3. The percentage of energy of…

Q: The nodal diagram shown is of a section of a flat plate with thermal conductivity of 56 W/m K. The…

A:

Q: What is the difference between internal heat generation and heat transfer in any direction.

A: Internal heat generation: When the heat is generated within the object at constant rate (per unit…

Q: You need an apartment for rent and as shown in the figure, you can see that the 3rd floors of each…

A:

Q: Magnolia Dairy Products plant must cool 4000 gallons of fresnmilk received from the farm per day…

A: As per given  Plant cooled=4000 gallon Spefic gravity =0.935 Temperature difference =80 to 38 °F…

Thermodynamic Relations

Thermodynamics is the division of physics that deals with the transfer of any kind of energy, whether it be heat, temperature, or work, from one object to another.