Engineering, 26.02.2020 04:18 einstein101

Two metal blocks of equal mass M of the same substance, one at an initial temperature T1i and the other at an initial temperature T2i , are placed in a well-insulated (adiabatic) box of constant volume. A device that can produce work from a flow of heat across a temperature difference (i. e., a heat engine) is connected between the two blocks.
Develop expressions for the maximum amount of work that can be obtained from this process and the common final temperature of the blocks when this amount of work is obtained. You may assume that the heat capacity of the blocks does not vary with temperature.

Answers: 1

Show answers

Another question on Engineering

Engineering, 03.07.2019 15:10

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

Answers: 1

Answer

Engineering, 04.07.2019 18:10

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

Answers: 1

Answer

Engineering, 04.07.2019 19:20

At steady state, air at 200 kpa, 325 k, and mass flow rate of 0.5 kg/s enters an insulated duct having differing inlet and exit cross-sectional areas. the inlet cross-sectional area is 6 cm2. at the duct exit, the pressure of the air is 100 kpa and the velocity is 250 m/s. neglecting potential energy effects and modeling air as an 1.008 kj/kg k, determine ideal gas with constant cp = (a) the velocity of the air at the inlet, in m/s. (b) the temperature of the air at the exit, in k. (c) the exit cross-sectional area, in cm2

Answers: 2

Answer

Engineering, 04.07.2019 19:20

Amass-spring-viscous damper system of mass 3 kg has a frequency of 100 rad/s and is critically damped. its initial conditions are x(0)-3 mm and (0)-2.3 m/s. does the system overshoot its equilibrium position? prove your answer

Answers: 1

Answer

You know the right answer?

Two metal blocks of equal mass M of the same substance, one at an initial temperature T1i and the ot...

Questions