subject
Engineering, 16.12.2019 22:31 alexbx9236

An electrochemical cell is composed of pure copper and pure lead electrodes immersed in solutions of their respective divalent ions. for a 0.4 m concentration of cu2+, the lead electrode is oxidized yielding a cell potential of 0.460 v. calculate the concentration of pb2+ ions if the temperature is 25˚c. the standard potentials for cu and pb are +0.340 v and -0.126 v.

ansver
Answers: 3

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
Answers: 3
question
Engineering, 04.07.2019 18:10
The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody
Answers: 2
question
Engineering, 04.07.2019 18:10
Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
Answers: 1
question
Engineering, 04.07.2019 19:20
Air at a pressure of 1atm and a temperature of 40 c is in parallel flow over the top surface of a flat plate that is heated to a uniform temperature of 120 c. the plate has a length of 0.40m (in the flow direction) and a width of 0.15m. the reynolds number based on the plate length is 50, 000. what is the rate of heat transfer from the plate to the air? if the free stream velocity of the air is doubled and the pressure is increased to 10 atm what is the rate of heat transfer?
Answers: 2
You know the right answer?
An electrochemical cell is composed of pure copper and pure lead electrodes immersed in solutions of...
Questions
question
Mathematics, 09.10.2019 05:10
question
Business, 09.10.2019 05:10
Questions on the website: 13722367