electrochemistry, Chemistry

Assignment Help:
The W-cell consists of a cadmium amalgam anode and a mercury-mercurous sulfate cathode with a saturated cadmium sulfate solution as the electrolyte. This cell has been commonly used as a voltage standard in laboratories, replacing the previous standard C-cell. The voltage of this cell is 1.0183 V at 293 K and the temperature coefficient ? ?? dE??? dT a. Write down a cell diagram for the W-cell. b. Write down the half cell and the full cell reactions. c. Calculate ?G at 20 oC for the cell reaction. d. Calculate ?S at 20 oC for the cell reaction. of the cell is –4.06x10-5 V K-1. p e. The C-cell has an EMF defined by [1.434 - 0.0012 (T - 15)] Volts, where T is in oC. Calculate the temperature coefficient of the C-cell and suggest why the W-cell is better suited as a voltage standard than the C-cell. f. Explain why when using standard cells no appreciable current should be drawn

Related Discussions:- electrochemistry

Calculate the slope of a line from data points, Q. Calculate the Slope of a...

Q. Calculate the Slope of a Line from Data Points? Compute the slope of a line that contains these data points (3.0 cm 3 , 6.0 g) and (12 cm 3 , 24 g). To compute the slope of

Show the properties of aluminium oxide, Q. Show the properties of Aluminium...

Q. Show the properties of Aluminium Oxide ? Aluminium oxide, Al 2 0 3 is a highly ionic compound of aluminium. It is also known as alumina. As you have studied earlier, it occ

What do you mean by blanching, Q. What do you mean by Blanching? The en...

Q. What do you mean by Blanching? The enzymes in the food system can be separated into four groups relating to the changes in flavour, colour, texture and nutritive value. T

What is saytzeff''s rule, The formation Alkenes by the dehydration of alcoh...

The formation Alkenes by the dehydration of alcohols (using concentrated H 2 SO 4 ) the hydrogen atom will be separate (to remove as water) from the adjacent carbon atom correlated

What are enantiomers, Write chemical equations 1 the reactions involved in ...

Write chemical equations 1 the reactions involved in the manufacture of potassium permanganate from pyrolusite ore What are enantiomers? Draw the structures of the possible e

Radius of electron in the first excited state of hydrog atom, The radius of...

The radius of electron in the first excited state of hydrogen atom is: (1) a 0                      (2) 4a 0            (3) 2a 0                            (4) 8a o

Write Your Message!

Captcha
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