explain the reactions taking place in dry cell and mercury cells?
explain the reactions taking place in dry cell and mercury cells?
prem kumar , 13 Years ago
Grade
Physical Chemistry> battries...
1 AnswersSunil Kumar FP
Mercury cells
Mercury batteries are small, circular metal batteries that were used in watches. Mercury cells offer a long lifetime in a small size but the mercury produced as the cell discharges is very toxic. Mercury cells only produce 1.3 volts.
HgO +Zn +H2O ------>Hg +Zn(OH)2 +lectrical energy
dry cell
A dry-cell battery uses an immobilized electrolyte that minimizes moisture and allows for superior portability.
A common dry cell battery is zinc-carbon battery
Zn +2MnO2 +2NH4(aq)------>Mn2O3(s) +H2O(l) +Zn2 +2NH3(g)
E0=1.5V
Mercury batteries are small, circular metal batteries that were used in watches. Mercury cells offer a long lifetime in a small size but the mercury produced as the cell discharges is very toxic. Mercury cells only produce 1.3 volts.
HgO +Zn +H2O ------>Hg +Zn(OH)2 +lectrical energy
dry cell
A dry-cell battery uses an immobilized electrolyte that minimizes moisture and allows for superior portability.
A common dry cell battery is zinc-carbon battery
Zn +2MnO2 +2NH4(aq)------>Mn2O3(s) +H2O(l) +Zn2 +2NH3(g)
E0=1.5V
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Other Related Questions on physical chemistry
Which of the following aqueous solutions remains neutral after
electrolysis
Which of the following aqueous solutions remains neutral after
electrolysis
electrolysis
physical chemistry
0 Answer Available
Last Activity: 3 Years ago
In the reaction A + 2B ⇌ 2C, if 2 moles of A, 3 moles of B and 2 moles of C are placed in a 2 L flask and
the equilibrium concentration of C is 0.5 mol/L. The equilibrium constant (KC) for the reaction is.....and please tell how you know that the reaction is going forward .. imean how to calculate the reaction quotient ???
In the reaction A + 2B ⇌ 2C, if 2 moles of A, 3 moles of B and 2 moles of C are placed in a 2 L flask and
the equilibrium concentration of C is 0.5 mol/L. The equilibrium constant (KC) for the reaction is.....and please tell how you know that the reaction is going forward .. imean how to calculate the reaction quotient ???
the equilibrium concentration of C is 0.5 mol/L. The equilibrium constant (KC) for the reaction is.....and please tell how you know that the reaction is going forward .. imean how to calculate the reaction quotient ???
physical chemistry
1 Answer Available
Last Activity: 3 Years ago
18 19 gram mixture of na2co3 and nahco3 on heating gives 2.2 gram CO2 gas find the percent nahco3 (by mass) in mixture
18 19 gram mixture of na2co3 and nahco3 on heating gives 2.2 gram CO2 gas find the percent nahco3 (by mass) in mixture
physical chemistry
1 Answer Available
Last Activity: 3 Years ago