Steam enters a turbine with an enthalpy of 3300 KJ/kg and leaves with an enthalpy of 2400 kJ/kg. The power output of the steam turbine is 6 MW     Determine the work done per unit mass of the steam flowing through the turbine. 871.78 KJ/Kg 881.87 KJ/Kg 788.82 KJ/kg -871.78 KJ/Kg   Calculate the mass flow Rate of the steam. 7.68 kg/s 6.80 kg/s 8.61 kg/s 8.60 kg/s

Q: One mole of an ideal gas undergoes an isothermal compression at T=300K. In this process, 500 J of…

A: n=1,T=300K,W=500J,V1=1.5L,

Q: A certain coal-fired power plant has a rated power capacity of P = 950 MW. The output of this plant…

A:

Q: 18- Bolum-8+A2B1C3UUXID5V A25 g bal a released from rest 80 m above the surface of Earth. During the…

A: To answer: The velocity of the ball just before it hits the surface.

Q: Three moles of an ideal monatomic gas are at a temperature of 375 K. Then 2583 J of heat is added to…

A:

Q: An engineer on Mars operates a motor that loses 45 kilojoules [kJ] of energy as heat in 20 minutes…

A:

Q: One mole of an ideal gas undergoes an isothermal compression at T=300K. In this process, 500 J of…

A: Isothermal work done is given by W=nRTlnV2V1 n is the no. of moles R is gas constant T is…

Q: The exhaust temperature of a heat engine is 230 degrees Celsius. What must be the high temperature…

A: exhaust temperature of heat engine (TL) = 230oC carnot efficiency percentage = 28%

Q: A 0.5 kg plant falls of a building. If the original GPE was 70 J then HOW HIGH was the plant before…

A: Mass of plant (m) = 0.5 kg Original gravitational potential energy (E) = 70 Joules

Q: A. Determine the work done on a fluid that expands from i to f as indicated in the figure. B. How…

A:

Q: Thermal Physics The graph below shows the temperature of a sample of substance as it is heated. The…

A: When a substance is heated there is an increase in the temperature of the material. The increase in…

Q: 19  Imagine that we add 295 J of thermal energy to 20 liter (L) (20000 cm3) of air initially at room…

A: (19) Given: The heat added is Q=295 J, The volume of air in the room V1=V2=V=20000 cm3. For air as…

Q: One mole of an ideal gas first undergoes an isothermal expansion at a temperature T1 = 650 K to 5…

A:

Q: aluminum sample increases its temperature by 443◦C, when it absorbs 2000J. What is the mass of the…

A:

Q: How much heat transfer occurs to the environment by an electrical power station that uses 1251014 J…

A: efficiency of the machine= 100% heat provided = Qin= 1.25x1014 J heat transferred to the environment…

Q: A gas expands from 0.1 m^3 to 0.5 m^3 under a constant pressure of 10kPa. What is the work done? * 4…

A: Given Initial volume of the gas is Vi=0.1 m3 Final volume of the gas Vf=0.5 m3 Pressure of the gas…

Q: A closed system consisting of 10 lb of air undergoes a polytropic process from p₁ = 80 lbf/in², v₁ =…

A: Solution :-  For polytropic process:-  P.V^n = constant .  Work done = (P2. V2 - P1 . V1) / (1-n)

Q: A TV tube of glass with zero pressure inside and atmosphere pressure outside suddenly cracks and…

A: Given that: Inside pressure, Pi=0 PaOutside pressure, Po= 1 atm=101325Volume of the tube,…

Q: The temperature of a monatomic ideal gas remains constant during a process in which 6130 J of heat…

A: It is given that heat flows out of the gas, hence the sign would be negative. That is,

Q: Consider molecules of hydrogen gas (m = 2.0u) and heavier molecules of oxygen gas (m = 32.0u) that…

A:

Q: A sample of an ideal gas at 19.2 atm and 15.0 L is allowed to expand against a constant pressure…

A:

Q: A gas is compressed at a constant pressure of 2.6 atm from 7.5 litre to 5 litre. The work done on…

A: Pressure, P = 2.6 atm Initial volume, V =  7.5 litre Final volume, V'= 5 litre

Q: m = 0.517 kg of methanol in atmospheric pressure is heated with an electric heater from T₁ = 27.9 °C…

A: Densityρ is given by:Densityρ=massmvolumeV

Q: A 0.5 m container of an ideal gas at atmospheric pressure is at a temperature of 20 °C and contains…

A:

Q: A tank with a pressure of 2.5 atm and a volume of 12 m³ is compressed at constant pressure to 1/4 of…

A: Pressure, p=2.5 atm Initial volume, v1=12 m³ Final volume, v2=3 m³

Q: A 1.20-g lead bullet at 28.0°C is fired at a speed of 200 m/s into a large block of ice at 0°C, in…

A:

Q: Consider a piston-cylinder assembly containing a gas as shown below. The initial volume f the gas is…

A: According to Hook's law F = kx

Q: The internal energy of a system is initially 24 J. The system does 25 J of work. What is the…

A: Given data:  Initial internal energy (Ui) = 24 J Work done by the system (W) = 25 J Heat added to…

Q: An ideal gas is brought through an isothermal compression process. The 5.00 mol of gas goes from an…

A: Given: No. of moles of gas n=5, Initial volume Vi=226.4×10-6 m3, Final volume Vf=134.9×10-6 m3, Work…

Q: A gas is compressed at a constant pressure of 2.6 atm from 7.5 litre to 5 litre. The work done on…

A: Given : P = 2.6 atm = 2.6 × 1.013 × 105 = 2.6 × 105 Pa Vi = 7.5 litre = 7.5 × 10-3 m3 Vf = 5 litre =…

Q: 6 The diagram below depicts an ideal monatomic gas which is compressed isobarically at p = 1.18×10…

A:

Q: As the gas trapped in a cylinder with a movable piston cools, 1.34 kJ of work is done by the…

A: The work done on the gas is given by dW = P × dV   Where dW = Work done, P = Pressure of the gas, dV…

Q: Show solution. Please use the table for conversion. 1. 72143 cm3 to ft3 2. 25278 L to m3 3. 9.81…

A: Given,

Q: If you launch a projectile upward with a high enough speed, its kinetic energy is sufficient to…

A:

Q: The motor that drives a refrigerator produces 151 W of useful power. The hot and cold temperatures…

A:

Q: A quantity of gas in a piston cylinder has a volume of 0.518m ^ 3 and pressure of 200 Pa. The piston…

A: In isothermal process temperature of system is constant hence, internal energy of system is…

Q: 400 J of work are done on a system in a process that decreases the system's thermal energy by 300 J.

A: Work-done on the system is Change in thermal energy is Find:Heat energy.

Q: A chemical reaction transfers 8450 J of thermal energy into 11.8 moles of an ideal gas while the…

A: Given:Thermal energy,Q=8450 JNumber of moles,n=11.8Constant pressure,P=1.69 ✕ 105 PaVolume…

Q: Gases are composed of particles that expand to completely fill their container. What causes the…

A:

Q: A gas sample expands from V1 to V2. In which situation does it perform the LEAST work?

A: Gas expands from V1 to V2 , then work done in each case will be positive.

Q: A thermodynamical system performs work and at the time exchanges energy to the outside environment…

A: First law of thermodynamics: The way of expressing the first law of thermodynamics is that any…

Q: The energy released from condensation in thunderstorms can be very large. Calculate the energy (in…

A:

Q: 158 J of energy is transferred to a system consisting of 2.0 moles of an ideal gas. If the volume of…

A: Given: The amount of energy transferred is Q=158 J. The number of moles is m=2 mole. The volume is…

Q: Which of the following is NOT correct regarding open or closed systems? Select one: O a. Both mass…

A: In the closed system energy can be exchanged in the form of heat or work .but mass can not be…

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.