a) A heat engine operates at a 40% efficiency. The heat input is 20,000 J. How much work does this engine produce? b) Assume that the efficiency listed is the Carnot efficiency. What is the ratio of temperature of the cold reservoir to temperature of the hot reservoir? c) If the real ratio of temperature of the cold reservoir to temperature of the hot reservoir was less than you found in (b), would this engine violate the 2nd Law of Thermodynamics? Explain.

a) A heat engine operates at a 40% efficiency. The heat input is 20,000 J. How much work does this engine produce? b) Assume that the efficiency listed is the Carnot efficiency. What is the ratio of temperature of the cold reservoir to temperature of the hot reservoir? c) If the real ratio of temperature of the cold reservoir to temperature of the hot reservoir was less than you found in (b), would this engine violate the 2nd Law of Thermodynamics? Explain.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

i have a couple of questions i need help with
For the First name and Surame please use the N - Z option First name w(ab) and a(AB) are counter-clockwise Surname: r(AB) = 500mm and angle = 30 Degrees
Select one simple mechanism (4 links) and explain the following with regards to the selected mechanism. i. Kinematic pairs based on nature of contact. ii. Kinematic pairs based on nature of relative motion. iii. Degrees of freedom. iv. Possible inversions and applications
Choice the correct answer of the following statements: 1. The power transmitted of two pulleys connected by an open belt or crossed belt is a) directly proportional to their diameters; b) inversely proportional to their diameters; proportional to the square of their diameters; c) directly d) inversely proportional to the square of their diameters. 2. Two pulleys of diameters d1 and d2 and at distance x apart are connected by means of an open belt drive. The length of the belt is: a) π/2 (d: + d₂) 2x + (d: + dz)/4x; b) n/2 (d₁-dz) 2x + (di-dz)/4x; c) n/2 (d: +d₂) 2x + (di-d₂}/4x; d) π/2 (d₁-də) 2x + (d: +d₂)²/4x. 3. In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is constant, then: a) open belt drive is recommended; b) cross belt drive is recommended; c) both open belt drive and cross belt drive are recommended; d) the drive is recommended depending upon the torque transmitted. 4. Due to not slip of the belt, the power transmitted of the belt drive:…
In the figure below, the location of the tool, WT, is not accurately known. Using force control, the robot feels around with the tool tip until it inserts it into the socket (or Goal) at location T. Once in this "calibration" configuration (in which {G} and {T} are coincident), the position of the robot, T, is figured out by reading the joint angle sensors and computing the kinematics and given below. Assuming T and T are given below, give the transform equation to compute the unknown tool frame, WT. (W) 21
Ql: Write true or false a- The body is constant when no force effect of this. b- The moment is force x distance. c- Force is vector quantity. d- The force in the engineering dynamics is zero. e- Space is the geometric region for two coordinates and three coordinates. f- Particle is zero dimensions but have weight. g- Acceleration is a scaler quantity. h- We can use tan law to solve the problems. i- We use the plus in the cosine law when the angle between two force. j- Rivet between two plates is external force.
3. Column ABC has a uniform rectangular cross-section and is braced in the xz plane at its midpoint C is shown Figure Q3(a). Given, the factor of safety is 2.7, P=5.4 kN, L=600 mm and E=70 GPa, determine the ratio b/d for which the factor of safety is the same with respect to buckling in the xz and yz planes
Finding reactions, force and members
R:37)
B1
i need the final answer quickk pls
Q4