Answer: Ecell = -0.110volt
Explanation:
Zn--->Zn^+2 + 2e^-.........(1) oxidation
Cu^2+ 2e^- --->Cu........(2)reduction
Zn + Cu^2+ ----> Cu + Zn^+2 (overall
For an electrochemical cell, the reduction potential set up is given by
E(cell) = E(cathode) - E(anode)
E(cell) = E(oxidation) - E(reduction)
E(cathode) = E(oxidation)
E(anode) = E(reduction)
Given that
E(oxidation) = -0.763v
E(reduction) = +0.337v
E(cell) = -0.763 - (+0.337)
E(cell) = -0.763- 0.337
E(cell) = -0.110volt
Answer:
A
Explanation:
particles are frozen and hence will vibrate in their fixed positions
Fertilizer use the run on can go into fresh water
Answer:
Hence , in a century<u> 0.342 liters</u> of the liquid will drip.
Explanation:
The rate of the flow of the liquid droplet is given by:


<u>Unit conversion:</u>
We need to change mL/hr into Liter/century
1 L = 1000 mL (given)
1 mL = 0.001 L......(1)
1 century = 100 year
1 year = 365 days
So, 1 century = 100 x 365 days = 36500 days
1 day = 24 hrs
So , 36500 days = 36500 x 24 hr = 876000 hr
Hence ,
1 century = 36500 days = 876000 hr
we are not asked to calculate the answer in days
1 century = 876000 hr
1 hr = 1/ 876000 century
.....(2)
From (1) and (2) put the value in the given formula:
This is for 1 mL/hr to 1 L/century
Now for 300 mL/hr . the rate will be more , multiply the answer by 300
Rate = 0.342 Liters / century
Hence , in a century 0.342 liters of the liquid will drip.