Question

The first law requires that the amount of energy lost by the hot solid be equal to the amount of energy gained by the cold one. Does the second law require that the decrease in entropy of the hot solid be equal to the increase in entropy of the cold one?

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 10-mm-diameter rod has a modulus of elasticity of E = 100GPa. If it is 4 m long and subjected to a...

A: Given: The diameter of the rod is d=10 mm The length of the rod is L=4 m The axial load on the rod i...

Q: Show that the force exerted by a liquid jet on a stationary nozzle as it leaves with a velocity V is...

A: Assumptions: Flow is steady and incompressible. The frictional effects are negligible. Flow is unif...

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: 16-97. If the hub gear H and ring gear R have angular velocities wn = 5 rad/s and wg = 20 rad/s, res...

A: According to the given diagram, the arm OA rotates about a fixed point O. Draw a diagram showing the...

Q: The flexible cable used to tether the balloon shown in Fig. PS-104 weighs 7.0 N/m and is 100 m long....

A: Given data: *The weight of the cable per metre is W=7 N/m. *The vertical buoyant force of the balloo...

Q: On March 16, 1990, an Air Force SR-71 set a new continental speedrecord, averaging a velocity of 211...

A: Click to see the answer

Q: Water flows at 15 f/s through a 6 ft wide rectangular channel as shown in the figure. The upstream d...

A: Given: Width of the channel B = 6 ft Discharge in the channel Q = 15 ft3/s   The value of discharge ...

Q: Explain Managing Constraints in Line Processes?

A: The constraints can be managed in a line process using the following five steps: First, the problem...

Q: For what purpose is a torsion test performed?

A: The torsion test is used to determine the shear properties of the material. In this testing, the spe...

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: 1 atm = 2116 lb/ft2 = 1.01 × 105 N/m2. An airfoil is in a freestream where p∞ = 0.3 atm, ρ∞ = 0.819 ...

A: Given data: Free stream pressure, P∞ = 0.3 atm Free stream density, ρ∞ = 0.819 kg/m3 Free stream vel...

Q: What is the main difference between the HEAC model and the IHAC model?

A: Hydrogen environment assisted cracking model (HEAC model) and Internal hydrogen assisted cracking mo...

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: Determine whether the force-and-couple system shown can be reduced to a single equivalent force R . ...

A: First reduced the given force system to a force -couple at the origin. And net force would be,  

Q: (a)The device shown in figure 5 is designed to apply pressure when bonding laminate to each side of ...

A: Click to see the answer

Q: The flow rate of water flowing in a 5-m-wide channel is to be measured with a sharp-crested triangul...

A: The notch angle of the triangle weir is given as, The discharge coefficient is given as, The flow ...

Q: A sphere of radius r and mass m is projected along a rough horizontal surface with the initial veloc...

A: Given data:   The radius of the sphere is r. The mass of the sphere is m. The initial angular veloci...

Q: a) Determine the velocity of the slider block C at this instant. b)Determine the acceleration of the...

A: Click to see the answer

Q: 5. A mild steel shaft is subjected to a bending moment M = 400N.m and torque T = 300N.m . The equiva...

A: Write the given data:  

Q: For the cantilever beam and loading shown, determine the slope and deflection at the free end

A: Given Data: The length of the cantilever beam is The load on the beam is The moment acting on the b...

Q: How are the modulus of rigidity & Young's modulus related?

A: Given E = Modulus of elasticity/ Young modulus G = Modulus of rigidity To find The relationship betw...

Q: To keep a door closed, a wooden stick is wedged between the floor and the doorknob. The stick exerts...

A: Write the expression of the position vector of point A. Write the expression of the position vector...

Q: 2-97 Two forces are applied at a point in a body as shown The angle a between forces F, and F, F2=24...

A: Write the expression of the position vector of force F1. Write the expression of the unit vector of...

Q: A coastal power plant takes in cooling water through avertical perforated manifold, as in Fig. . The...

A: Calculate the sink strength using the relation with the depth of water. Here, Q is the volume flow ...

Q: Explain the role of the baffles in a shell-and-tube heat exchanger as well as how the presence of th...

A:        Baffles are fluid flow controlling plates that are generally used to avoid stratification and...

Q: load of 30kN/m. The second and fourth spans remain unloaded. Calculate the bending moments at B and ...

A: Click to see the answer

Q: 16-67. Determine the reactions at the supports A and B. El is constant L.

A: The free body diagram of the beam is represented below: The sum of horizontal forces of the beam is...

Q: Can the entropy of an ideal gas change during an isothermal process?

A: Yes, the entropy of an ideal gas can change during an isothermal process. The entropy of a system ch...

Q: The power P required to drive a propeller is known to depend on the diameter of the propeller D, the...

A: Write the dimension of the variables used for a particular propeller.

Q: 10-45. The rotating flywheel-and-shaft, when brought to a sudden stop at D, begins to ascillate cloc...

A: Given data: Arc length, s = 6mm Radius of the wheel, R = 75mm Shaft inner dia, d = 24 mm Shaft outer...

Q: For the bracket and loading of Prob. 4.7, determine the smallest distance a if the bracket is not to...

A: When bracket is not to move, the reaction force at A will be zero i.e. the bracket will be in equili...

Q: A jet issues without loss from a hole in a water tank that is open to the atmosphere. The hole is lo...

A: Write the Bernoulli’s equation between the free surface of the water and nozzle.

Q: What are the distinguishing differences between elasticity, plasticity, and fracture?

A: There are the following differences between elasticity, plasticity and fracture. Elasticity:- It is...

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: When the 18-kg wheel shown is attached to a balancing machine and made to spin at a rate of 12.5 rev...

A: Write the expression of the angular velocity. Write the expression of the force acting on the syste...

Q: 5-5. Determine the force in each member of the truss and state if the members are in tension or comp...

A: Given: The magnitude of load, P = 4 kN   The free body diagram for the section passing through membe...

Q: I1-50. Determine the maximum tensile and compressive bending stress in the beam if it is subjected t...

A: Given data: Moment , M = 6 kNm   Considering cross sectional view of the given figure.

Q: The solid shaft has a linear taper from rA at one end to rB at the other. Derive an equation that gi...

A: Draw the schematic diagram of the shaft.

Q: 17-17. Determine the location y of the center of mass G of the assembly and then calculate the momen...

A: Click to see the answer

Q: The position of the particle is given by s = (2t^2 - 8t + 6) m, where t is in seconds. Determine the...

A: The position of the particle is given as, It is known that, Calculating the time when the velocity...

Q: A Diesel cycle has a compression ratio of 22 and begins its compression at 85 kPa and 15°C. The maxi...

A: Process 1-2:Reversible adiabatic compression process   Process 2-3:Constant pressure heat addition p...

Q: 18-41. The spool has a mass of 20 kg and a radius of gyration of ko = 160 mm. If the 15-kg block A i...

A: Given that: The mass of the spool m=20 kg. The radius of gyration is K0=160 mm The angular velocity...