How much heat in Btu must be transferred to 42lb of air to increase the temperature by 250 0F at constant pressure? a. 2517.7057Btu b. 2215.5810Btu c. 2397.8149Btu d. 2110.0771Btu

Q: Q) What is P saturated water atT(C)= 1)235 2)360 3)2. *

A:

Q: Draw and label the P-V and T-S diagrams. A spark ignition engine takes in air at 14.7 psia and…

A: Given: A spark-ignition engine whose initial pressure is, P1=14.7 psi. The initial temperature of…

Q: Q2: Arigid tank of (0.3 m³) at 15.5 bar , if 90% of mass is liquid water, how much heat must be…

A:

Q: Air conditioning unit removes heat steadily from a house at a rate of 500 kJ/min. It draws electric…

A: Given      Heat removal, QR = 500 kJ/min           Workdone, W = 5 kJ/s Solution…

Q: In charging a car air conditioner, 2.4% of a 15-pound cylinder of refrigerantR-134a is used. How…

A: Let M and N are two numbers. Let M is a part of the whole number N, Percentage =MN Now we convert…

Q: tify if the property of the following steam: Temp Internal Energy Specific Enthalpy C kJ/kg kJ/kg…

A:

Q: What is the internal energy of the system and how can it be changed?

A: Explanation  Internal Energy : Internal energy of the system is the total energy contained within…

Q: Air enter heating coil at temperature of 40 F and leaves at 110 F amount of moist air enter in…

A:

Q: 6. What is the total cost of using the following at 9¢ per kilowatthour? a. 110W TV set for 4 h b.…

A:

Q: team at 0.029 MPa has a dryness of 60%. Find its Entropy in kJ/kg-k choose the correct final answ

A: Given:Pressure ,P=0.029 MPadryness fraction, x=60 % or 0.6

Q: A 3 m3 air tank has an initial pressure of 120 kpa and 35oC. The heat is added until its pressure…

A:

Q: This application can be said a closed thermodynamic system Water heater Air compressor O

A: To select the correct option.

Q: . What is the tire pressure when the air returns to 70F?

A: Find tire pressure when the air returns to 70F

Q: 17. One ton of refrigeration effect is equal to how many Btu/hr.?

A: 1 Ton of refrigeration is the heat removal unit.

Q: the volume at state 1. the air mass per cycle. the heat addition per cycle, in kJ. the heat…

A: Heat Added = mass X sp. heat at constant volume  X temp difference

Q: A compressor increases the of a gas by. its Select one: O a. pressure, increasing, volume O b.…

A: An air compressor is a machine which takes in atmospheric air, compresses it and increases its…

Q: Water (2 kg) is in a rigid tank where 22% of the water is in the liquid phase and the temperature is…

A: Given Data, m = Mass of the water in the tank = 2 Kg Since, 22% of water is in liquid phase. So,…

Q: Work done in a free expansion process is (a) +ve (b) -ve (c) zero (d) none of the above

A: Free expansion is the process in which gas expands without any resistance or pressure from the…

Q: 1 MT/h CH4 (liq) is heated to 44.85 deg C from 31.85 deg C, 400 kPa. What is the duty of the heater…

A:

Q: State how the boilers are classified ?

A:

Q: One pound of an ideal gas undergoes an isentropic process from 95.3 psig and a volume of 0.9ft to a…

A: As per our guidelines we are supposed to solve only 3 subparts if multiple subparts are asked.…

Q: 1. Fron a state define by 800 psig, and 135°C, under goes an isentropic process to 3.65 KPagoge .…

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

Q: n wall then the work done by force on wall

A: given: when  a force is applied on wall then the work done by force on wall is?

Q: Q1 / Refrigeration system operating at high pressure 12 bar and low pressure 5.4 bar She works as an…

A: Given data: In a Refrigeration system  Condenser Pressure  Evaporator Pressure  R22 refrigerant…

Q: d. Which one most contributing for storing and giving back the energy,

A: Answer: flywheel.

Q: A Metal container with a mass of 2 kg and containing 2.30 kg of water is put it on a fire. Assume…

A:

Q: 1. One pound of an ideal gas undergoes an isentropic process from 95.3 psig and a volume of 0.6 ft…

A: Given data: The initial pressure, P1 = 95.3 psig. The initial volume, V1 = 0.6 ft3. The final…

Q: A can of refrigerant 134a (R-134a) for car air conditioners contains 14 ounces.A case of 24 cans has…

A: Given Data : Refrigerant R-134a Can 1 can of R-134a contains =14 ounces

Q: The low efficiency of a system means an extra heat energy was added Ture O False O

A:

Q: g an energy atte the 1200 kg ca

A: K. E. =  1/2 mv^2   K.E. =  1/2 *1200*100*100 K.E. = 12000000 j   or 1200KJ

Q: actual motion of the heated particles, it is referred to transfer by

A: TO determine: When heat is transferred from one particle of a body to another by actual motion of…

Q: The first law of thermodynamics deals with While the zero law deals with.....

A: first law of Thermodynamics states that energy is neither created nor destroyed but it can be…

Q: the latent heat represents

A: This question is based on the concept of latent heat of vaporization from thermodynamics.

Q: The specific gravity of fuel oil having a heating value of 44,899.2KJ/kg is?

A: given : HV = 44899.2 KJ/kg

Q: An auditorium seats 1,500 persons. The inside design condition is 26°C dry bulb and 17°C bulb…

A: The dry bulb temperature, sometimes known as "air temperature," is the most commonly utilized air…

Q: An ammonia simple vapor operator between evaporator and condenser temperature of 20 C and 35 C…

A:

Q: The following relation: Tma Xoa. Toa + (1-Xoa). Tra is derived by using a heat balance between: a)…

A: To have an estimation of ventilation air provided by mechanical system, an enthalpy balance…

Q: What is the pressure of refrigerant 134a with a temperature of –12.73 °C and a dryness of 0.816?

A: Given data:

Q: Given data: P = 100 kPa x = 20% T2 = -26°C Need to determine the mass flow rate of the refrigerant…

A: Given :- P1=100kPa  x=20% T2 =-26oC Need to determine the mass flow rate of refrigerant and the…

Q: QUESTION 4 4.1 Write the expression used to define the following: (a) volumetric efficiency (b)…

A: (a) To define: The volumetric efficiency with the expression. Explanation: The ratio of the actual…

Q: nd

A: Pressure and temperature can haul the production of oil and gas by following ways:1. Oil and gas…

Q: 29. The work steady flow for an open system is 3.12 HP. During steady flow process, the pressure of…

A:

Q: 2- What is the difference between subcooled liquid and saturated liquid?

A: Differance between sub cooled liquid and saturated liquid :-

Q: 1. Define a 1-ton air conditioning unit. In terms of energy, what does the term "1 ton" mean?

A: 1) What does 1 ton mean? 1 ton in Air conditioning doesn't mean anything about its weight. This ton…

Q: 1-compare between the adiabatic and isothermal process.

A: According to Bartleby guidelines, we are allowed to solve only a single problem at a time.Please…

Q: All heat supplied in constant pressure process equals to the change in enthalpy for steam only.

A: For steam or liquid In case of steam or liquid, if any heat is supplied at constant pressure, then…

Q: The unit of work in S.I. units is .A Newton .B pound .C joule .D slug

A:

Q: A soup is set to boil. When the soup reaches 170°F, remove it from the heat and set it on the…

A: Initial soup temperature, Ti=170oFRoom Air temperature, T∞=80oFAfter time t=2min, soup temperature,…