Question

Some properties of ideal gases such as internal energy and enthalpy vary with temperature only [that is, u = u(T) and h = h(T)]. Is this also the case for entropy?

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Engineering
Mechanical Engineering

Thermodynamics

Related Mechanical Engineering Q&A

Find answers to questions asked by students like you.

Q: A pump is designed to deliver 9500 L/min of water at a required head of 8 m. The pump shaft rotates ...

A: Calculations

Q: On both P-v and T-s diagrams, the area enclosed by the process curve represents the net work of the ...

A: The net work of the reversible process is represented by; Here, the term ∫Pdv represents the area e...

Q: 22-33. If the 20-kg wheel is displaced a small amount and released, determine the natural period of ...

A: Given: The mass of the wheel, m = 20 kg The radius of the gyration, KG = 0.36 m The spring stiffness...

Q: 1. An automobile radio aerial consists of three sections having diameters  in.,  in., and ...

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want...

Q: 4-14. The man uses the hand truck to move material up the step. If the truck and its contents have a...

A: Given data: The truck and its contents have a mass is m=50 kg. The centre of gravity is G. Apply e...

Q: Consider two pressure taps along the wall of a laminar boundary layer as in Fig. The fluid is air at...

A: Write the assumption of the flow. The flow is steady, incompressible, and laminar. The boundary lay...

Q: Minor losses through valves, fi ttings, bends, contractions,and the like are commonly modeled as pro...

A: There are many minor losses associated with fluid flow in pipes like entry loss, exit loss, bend los...

Q: Distinguish between elastic buckling and inelastic buckling?

A: Buckling refers to a condition of failure of columns when the axial load on columns cause it to defl...

Q: Why is work done a scalar quantity?

A: Physical work is obtained as dot product of force and displacement. Since force and displacement are...

Q: Air at 1 atm and 20°C flows in a 3-cm-diameter tube. The maximum velocity of air to keep the flow la...

A: Click to see the answer

Q: oil has a spc.gravity of 0.94 with dynamic visc. of U=0.0096 N.sm/^2 flows in a 90 mm diamater pipe ...

A: Given that, Calculating the velocity of the oil inside the pipe,    

Q: Find the moment of inertia of the figure given below with respect to the x and y axes. P.s.: c=20 mm

A: Consider the diagram shown below for the given cross-section.

Q: A load bauxite has a density of 3.15 g/cm3. If the mass of the load is 135.5 metric tons how many du...

A: Click to see the answer

Q: Disk A has a mass mA = 4 kg, a radius rA = 300 mm, and an initial angular velocity ω0 = 300 rpm cloc...

A: Disk A Mass = 4 kg Radius = 300 mm Angular velocity = 300 rpm clockwise Disk B Mass = 1.6 kg Radius ...

Q: Question 2.2 Two 3 m long and 0.4 cm thick cast iron (k= 52 W/m-K) steam pipes, of outer diameter 10...

A: Given data

Q: The quantity of air in a 900 mm diam duct is 15 m/s, the duct resistance is 7.1 Ns/m® and the air de...

A: (a) Write the given data:  

Q: Argon is compressed in a polytropic process with n = 1.2 from 120 kPa and 10°C to 800 kPa in a pisto...

A: Given: The initial pressure of the argon in the piston-cylinder device is P1=120 kPa The final press...

Q: 17-105. If the coefficient of static friction between the 50-lb roller and the ground is u, = 0.25, ...

A: Click to see the answer

Q: The lattice energy of KF is 794 kJ/mol, and the interionic distance is 269 pm. The Na–F distance in ...

A:  

Q: 1. What are the technical features you should look at when choosing a car from engine point of view?...

A: The engine is considered the heart of a car. The function of a car engine is to convert the power in...

Q: Show that the volume expansion coefficient of an ideal gas is B=1/T, where T is the absolute tempera...

A: Assumption Pressure is constant ( P = C )   We know that change in volume due to thermal expansion i...

Q: There are four additive terms in an equation, and their units are given below. Which one is not cons...

A: Click to see the answer

Q: A prototype spillway has a characteristic velocity of 3 m/sand a characteristic length of 10 m. A sm...

A: For water

Q: A 20-m length of wire having a mass per unit length of 0.2 kg/m is attached to a fixed support at A ...

A: Draw the free-body diagram of the cable.

Q: The position of boom ABC is controlled by the hydraulic cylinder BD . For the loading shown, determi...

A: Free-body diagram of the boom ABC is given as, On using Sine Rule in triangle BCD,  

Q: Determine the moments of inertia of the shaded area shown with respect to the x and y axes.

A: Diagram of the shaded area with their measurements are given as, Due to uniformity about x’ and y’,...

Q: A mass of 15 kg of air in a piston–cylinder device is heated from 25 to 95°C by passing current thro...

A: The flow of electricity is considered as the work done on the system. The enthalpy change of the gas...

Q: For heat transfer purposes, a standing man can be modeled as a 30-cm-diameter, 175-cm-long vertical ...

A: Given: The convection heat transfer coefficient is h=10 W/m2 °C The diameter of the vertical cylinde...

Q: For the given loading, determine the zero-force members in the truss shown.

A: In this problem, the member FG is attached with member EH without any force so it will be a redundan...

Q: *13-96. The spring-held follower AB has a mass of 0.5 kg and moves back and forth as its end rolls o...

A: The displacement function is Differentiate the above equation with time, Again, differentiate the ...

Q: 9-29. The bar has a cross-sectional area of 1800 mm', and E - 250 GPa. Determine the displacement of...

A: From the figure, the load acting on the bar is a variably distributed load. Write the formula for to...

Q: The free space in a metal may be found by subtracting the volume of the atoms in a unit cell from th...

A: There are basically three types of packing systems. These are as follows, Simple cubic system (SCS)...

Q: W hen a force F is applied to the handle of the valve shown, its moments about the x and .;. axes ar...

A: Write the expression of the moment about O; Write the position vector;    

Q: The dry bulb and wet bulb temperatures of a room are measured as 30C and 20C, respectively. After mo...

A: The two points are shown on the psychometric chart below. Initial point -1 Final point -2

Q: 16–19. The vacuum cleaner's armature shaft S rotates with an angular acceleration of a = 404 rad/s²,...

A: Given data

Q: A Carnot refrigeration cycle is executed in a closed system in the saturated liquid–vapor mixture re...

A: Given data

Q: What is the internal axial force?

A: Internal Axial Force is defined as the force acting in the direction parallel to the axis of the mem...

Q: When a 20-lb weight is suspended from a spring, the spring is stretched a distance of 4 in. Determin...

A: Calculate the stiffness of the spring by using the relation for force in a spring. Here, F is the f...

Q: Pl6-1. Set up the relative velodity equalion between points A and . 1m ()

A: Given: The angular velocity of smallest member, ω = 6 rad/s The length of the smallest member, x = 1...

Q: Determine the magnitudes of the projected components of the force              F = [60i + 12j - 40k]...

A: Given data: Force, F = 60i + 40j – 12k   Writing the positions of point A,B and C, in vector form, ...

Q: Knowing that the radius of each pulley is 200 mm and neglecting friction. determine the internal for...

A: Draw the FBD of the bar AE. From the given figure write the expression for the angle θ.

Q: a) A solution has a gravity of 90o Tw. Calculate its specific gravity and its gravity in degree Baum...

A: Click to see the answer

Q: 12-137. The ball is ejected horizontally from the tube with a speed of 8 m/s. Find the equation of t...

A: Given data: *The velocity of the ball ejected horizontally from tube is vA=8 m/s. *The equation of t...