A flask contains a gas mixture of hydrogen and nitrogen. The total pressure of the mix is 2.0 atm. The partial pressure of the h
1 answer:
Answer:
Explanation:
Hello,
In this case, considering the Dalton's law states that the total pressure of a system equals to the summation of all the pressures of the gases in the system as shown below:
In such a way, for the given system, we've got:
Finally, solving for the partial pressure of nitrogen, we obtain:
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Answer: Gold act as cathode.
Explanation:
Standard potential for an electrochemical cell is given by:
= standard electrode potential =
The values have to be reduction potentials.
Reduction potentials for given elements
The element Be with negative reduction potential will lose electrons undergo oxidation and thus act as anode.The element Au with positive reduction potential will gain electrons undergo reduction and thus acts as cathode.
Cathode :
Anode :
Thus gold act as cathode.