Why is enthalpy generally more useful than internal energy in the thermodynamics of real world systems?

Q: For an aluminum structure with a fillet radius of 0.07-in, the ultimate tensile strength is 60 ksi.…

A:

Q: A 1.0 m3 object is hovering in water, where the specific weight of water is γw=9.81kN/m3. If the…

A:

Q: Water at 60F is flowing through a 3-inch inside diameter smooth horizontal pipe. If the Reynolds…

A: Write the expression of velocity of flow through the smooth horizontal pipe. v=vmax1-r2R2

Q: Re-work Problem 4 on Homework 2 using Lagrange's equations (see Figure 4 below). As indicated in the…

A:

Q: At the instant shown, the angular speed and acceleration of rod OB are = 24 rad/s2, respectively,…

A:

Q: The braking distance of a car from 100 km/h is 50 m assuming the pavement is level. (a) if the…

A: Find the breaking distance .

Q: In the figure shown, if wa=500rpm , solve for (a) the angular velocity of disk C (in rad/s) (b) the…

A:

Q: The roller at A is moving with a velocity of VA =5.73 m/s and has an acceleration of aa = %3D 2.02…

A:

Q: Consider a room at 20°C that is cooled by an air conditioner with a COP of 3.2 using a power input…

A: Find the constant in the heat transfer .

Q: Q2: Steam at 7 bar, dryness fraction 0.96 is throttled down to 3.5 bar calculate the change of…

A:

Q: Determine the moment of inertia of the area with respect to the x-axis

A:

Q: A steel band 6mm thick is to be pulled on to a cylinder 30cm in diameter. The internal diameter of…

A: Answer: (a) The necessary increase in temperature is 52.32℃. (b) The stress occurred in the hoop is…

Q: Which of the following describes the phenomenon of material failure? O Unstable crack growth Flutter

A: I think its answer should be first part unstable crack growth.

Q: For the mechanical translation system below, find the force-voltage analogy and force-current…

A: Given; K1=2K2=2K3=C+3M1=1+aM2=sa=0b=7c=5 Apply balance on the system; 1.…

Q: 5. A 50 ft. ladder is placed against a large building. The base of the ladder is resting on an oil…

A:

Q: 87.5 V C D (kN) -12.5 -62.5 Identify the loaded beam where this shear diagram is from.

A:

Q: An Otto cycle operates on 1lb/s of air from 15 psia and 130 F at the beginning of compression. The…

A:

Q: A steel bar is desired to be formed until it has a final length of 1.8m. What length should the bar…

A:

Q: he Piper Cherokee (a light, single-engine general aviation aircraft) has a wing area of 170 ft2 and…

A: From the given data: Calculate the value of aspect ratio as follows. Here, b is for the wing span…

Q: e maximum allowable load

A: To find Maximum allowed load

Q: Determine the moment of force F about point 0. Express the result in rectangular form. F= 120 lb 1…

A: The moment of force F about O  M0=OB→×F→ The co ordinates are: O=0i+0j+0kB=1i+4j+2kC=5i+0j+0k

Q: a) Identify the possible failure mode of the shaft and therefore what is the main mechanical…

A: The turbine is best suited for the functioning of electrical generators since it produces…

Q: 4- Explain why continuous chips are not necessarily desirable. 5- List the factors that contribute…

A: Given questions are related to manufacturing engineering 4. Explain why continuous chips are not…

Q: Five sections of a pipe, each five meters long, are connected and arranged as shown below. The pipe…

A: Solution: Given Data: L = 5 m h = 5 m ρg=0.001h Pin=1.5 atmPD=1 atm

Q: The force vs. elongation relationship for a given body is dependent on the body's geometry as well…

A: The given statements are true. The force vs elongation relationship of a body depends on the shape…

Q: Suppose potential p in millivolts is given by the expression p = k(x? - x) where x is in cm and k in…

A: Given: Potential→ϕ=kx3-x2 where k is arbitrary constant And x is the distance in x direction.…

Q: For an aluminum structure with a fillet radius of 0.07-in, the ultimate tensile strength is 60 ksi.…

A: Givenr=0.07inσult=60ksiq=0.8kt=2.1

Q: Suppose potential p in millivolts is given by the expression p = k(x3 - x) where x is in cm and k in…

A:

Q: H.W.4 1- Determine the shear stress at points A and B on the beam if it is subjected to a shear 100…

A:

Q: A. Normal and Tangential Coordinates 1. A design for a space station that orbits the earth in a…

A: Given Data The ground level from the center is:h=20 ft The center distance is:d=240 ft The…

Q: 3. At a section in & propetties are Known. Po = 1000 KPa; To=500k ; V= 200 m/ec %3D é) The…

A: Given Data The initial temperature is:To=500 K The initial pressure is:Po=1000 kPa The velocity…

Q: A copper cylinder 150mm outside diameter has walls 25mm thick. End plates are stayed by a 25mm…

A: Given Data :-  Outside dia = 150mm Walls thickness= 25mm Temp = -11  Atm temp = 100

Q: A 3/4-in. horizontal steel bar loaded at constant tension and welded to a vertical support is shown…

A: WELDING SYMBOL: It indicates the the complete welding for the joint design that is bevel weld symbol…

Q: An empty 7 gal tank weighs 8 lbm. What is the total weight in Newtons of the tank plus the water…

A: Given: Volume of the tank→V=7 gal Because 1 gal volume is equal to 0.004546 m3 Hence: →7…

Q: A 10 ft3 vessel of hydrogen at a pressure of 305 psia is vigorously stirred by paddles until the…

A:

Q: 1. A single-threaded 25-mm power screw is 25-mm in diameter with a pitch of 5mm. A vertical load on…

A:

Q: The actual velocity of gas entering in a chimney is 8 m/s. The gas temperature is 25°C with a gas…

A:

Q: 7- The cutting force increases with the depth of cut and decreasing rake angle. Explain why. 8-…

A:

Q: the minimum force F

A: Given; Block R is tied to the wall by a massless and inextensiblestring PQ.A block R of mass,m=100…

Q: Determine the magnitude and sense (cw or ccw) of the resultant moment produces by the force system…

A: Find the magnitude and sense of the resultant moment about point O.

Q: Answer the following questions: Topic: Engine Operating What is Power Calculation? What is Engine…

A: What is Power Calculation? What is Engine Efficiency?

Q: 1. Replace the two forces acting on the post by a resultant force and couple moment at point O.…

A:

Q: In the figure shown, If vç=700 mm/s, solve for the (a) velocity (in m/h) of D and (b) the angular…

A: Find the velocity of D and angular velocity of AB.

Q: 13.10 The firehose is being uncoiled from its reel at the constant speed of 2 m/s. Determine the…

A:

Q: An old pipe is to be replaced by a new one with the same diameter and length. If the friction factor…

A:

Q: 1. A steel pipe of length 4 ft, outside diameter of 6.0 in., and inside diameter of 4.5 in., is…

A:

Q: 5. A diesel fuel tank has been filled with gasoline and runs until it quits. Which of the following…

A: When the diesel tank is filled with the gasoline then the combustion process becomes abnormal It…

Q: Explain the procedure and regulations for hydraulic and pneumatic components maintenance

A: Proper Procedure and regulations for hydraulic system... Clean the area around dipsticks, fill plugs…

Q: 1. Energy consumption in a country from 2001 to 2011 increased from 1041.3 million to 1526.1 million…

A: The measurement for doing work is known as energy. Electrical energy is defines as a movement of…

Q: 1418. A weight is dropped from a position just above, but not touching, a spring. Show that the…

A: For gradual loading of spring:δst=PKHere,P=Load/Weight on springK=Spring constantδst=static…

Basic Thermodynamic Processes

The word 'thermodynamics' can be divided into two words, 'thermo' and 'dynamics'. The word thermo deals with the heat and thermal phenomenon, whereas dynamics deals with forces or external agent that drives the heat flow or aids in the motion of heat.