Engineering, 09.12.2019 23:31 makayladurham19
An electrochemical cell is composed of pure nickel and pure iron electrodes immersed in solutions of their divalent ions. if the concentrations of ni2+ and fe2+ ions are 0.002 m and 0.40 m, respectively, what voltage is generated at 25°c? (the respective standard reduction potentials for ni and fe are −0.250 v and −0.440 v.) (a) −0.76 v (b) −0.26 v (c) +0.12 v (d) +0.76 v
Answers: 1
Another question on Engineering
Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
Engineering, 04.07.2019 18:10
The higher the astm grain-size number, the coarser the grain is. a)-true b)-false
Answers: 3
Engineering, 04.07.2019 18:20
An engine runs on the ideal diesel cycle. the cycle has a compression ratio of 20 and a cutoff ratio of 2. the highest temperature in the cycle is 1200 k. if the heat into the system is 300 kj/kg of working fluid and using variable specific heats determine the work produced per mass of working fluid
Answers: 3
Engineering, 04.07.2019 19:10
Estimate the change in specific internal energy au and specific enthalpy h from inlet to outlet for ethylene glycol (a liquid) flowing through each of the following devices: (a) a heat exchanger where the glycol temperature increases from 20 °c to 80 °c; (b) a pump operating at about 25 °c and increasing the glycol pressure from 100 kpa to 8 mpa.
Answers: 2
You know the right answer?
An electrochemical cell is composed of pure nickel and pure iron electrodes immersed in solutions of...
Questions
Mathematics, 31.08.2021 01:00
History, 31.08.2021 01:00
Mathematics, 31.08.2021 01:00
World Languages, 31.08.2021 01:00
Mathematics, 31.08.2021 01:00
