Calculate the total entropy change of the universe

Assignment Help Physics
Reference no: EM13494511

A real heat engine working between heat reservoirs at 970. K and 650. K produces 550. J of work per cycle for heat input of 2200. J.

(a) Compare the efficiency of this real engine to that of an ideal (Carnot) engine.

(b) Calculate the total entropy change of the universe per cycle of the real engine.

(c) Calculate the total entropy change of the universe per cycle of a Carnot engine operating between the same two temperatures.

Reference no: EM13494511

Questions Cloud

Define the pressure increased to 650mm hg : what volume will 500 mL of gas at 20 C and a pressure of 420 mm Hg occupy if the temperature is reduced to -80 C and the pressure increased to 650mm Hg
Compute the change in entropy of the universe : Two cars traveling in opposite directions collide head on and are brought to rest. estimate the change in entropy of the universe as a result of the collision
Will not accept applications unless applicant financial : Discuss two key issues that the IA-ABB are currently deliberating over. Evaluate why these issues are of importance to auditors and how they were dealt with previously.
Define initial amounts of reactants : For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 2Na(s)+Br2(g)->2NaBr(s) 1. 2mol Na, 2mol Br2 Express your answer as a chemical formula.
Calculate the total entropy change of the universe : A real heat engine working between heat reservoirs at 970. K and 650. K produces 550. J of work per cycle for heat input of 2200. J. Calculate the total entropy change of the universe
Explain identical conditions hcn effused : The label on a tank of gas of unknown origin had been lost. To determine its identity (molecular weight) a certain volume of it took 76.32 seconds to effuse through a porous partition. Under identical conditions HCN effused through the hole in 59...
Find the gravitational acceleration at the asteroid surface : A spherical asteroid with radius of 17.3 km has uniform density 3500 kg/m^3. Find the gravitational acceleration at the asteroid's surface
Explain the mass percentage of mgco3 in the mixture : If the sample reacted completely and produced 2297 mL of carbon dioxide at 24.88 °C and 736.6 mm Hg, what was the mass percentage of MgCO3 in the mixture
Calculate the length of the runway : A fully loaded Boeing 777 commercial airplane with a mass of 303.6 tonnes is at one end of the runway and about to take off. Calculate the length of the runway

Reviews

Write a Review

Physics Questions & Answers

  Compute how many moles of gas are present

An ideal gas at 11.7 °C and a pressure of 2.42 x 105 Pa occupies a volume of 3.84 m3. How many moles of gas are present

  Find coodinates x and y when the particle has reached half

At t=0, a charged particle at the origin has a velocity v along the positive z-axis. It is in the presence of parallel uniform fields E(along the positve x-axis) and B(along the positive x-axis).

  Determine the largest index of refraction

What is the largest index of refraction that the liquid can have, such that none of the light is transmitted into the liquid and all of it is reflected back into the solid

  What is the resultant velocity and final angle

You fire a gun horizontally that is 25m off the ground and the bullet goes at 200m/s. What is the time it takes for the bullet to hit ground, how far down range does bullet travel, and what is the resultant velocity (in m/s) and final angle.

  Calculate the resistance of a piece of nichrome wire

Calculate the resistance of a piece of nichrome wire 2.00 m long. the cross-sectional area of the 20 gauge wire is 0.5176 mm2

  Q1 a coin is placed 120 rm cm from the axis of a rotating

q1. a coin is placed 12.0 rm cm from the axis of a rotating turntable of variable speed. when the speed of the

  Determine the angle between these two vectors

Vectors A and B have scalar product -3.00 and their vector product has magnitude 9.00. What is the angle between these two vectors

  What is the average force required to stop the car

A car (m = 2,000 kg) has an initial speed of 40 m/s and the driver applies the brakes over a distance of 200 meters until the car comes to a stop

  How much heat flows into or out of the gas

A cylinder contains 4.0 moles of a monatomic gas at an initial temperature of 27 ?C. The gas is compressed by doing 580J of work on it, How much heat flows into or out of the gas

  What can be said about the acceelration of block b

Blocks A and B are connected across a frictionless pulley by a cord of negligible weight. If block B lies on a horizontal, frictionless surface and block A hangs vertically, what can be said about the acceelration of block B?

  Find the distance the sled moves before coming to rest

On a frozen pond, a 11.3 kg sled is given a kick that imparts to it an initial speed of v0 = 1.69 m/s. Use the work kinetic energy theorem to find the distance the sled moves before coming to rest

  In what direction is the magnetic field oscillating

In an EM wave the electric field oscillates 4 X 10^14 HZ at in the North - South direction. In what direction is the magnetic field oscillating

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd