In a dry cell, NH3 Liberated by the reaction does not built up gas pressure. Explain.
Dear Student,
Reactions Involved in a Dry Cell:
At Cathode:
At Anode:
Now, These two gases thus formed would have burst the cell, but this does not happen due to the other 2 reactions that are going on in the cell which are as follows:
Reactions Involved in a Dry Cell:
At Cathode:
At Anode:
Now, These two gases thus formed would have burst the cell, but this does not happen due to the other 2 reactions that are going on in the cell which are as follows:
So, in the first reaction, Ammonia gas (NH3) combines with Zn2+ ions.
And, in the second reaction, Hydrogen gas (H2) is Oxidised by MnO2 .
Hence, No gas pressure builds up in the Dry cell.
Hope this information clears your doubts about the topic.
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