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Question : 19
Total: 30
(a) Calculate ∆ G 0
Mg ( s ) + Cu 2 + ( aq ) → Mg 2 + ( aq ) + Cu ( s )
Given:E ° cell = 2.71 V , 1 F = 96500 C mol − 1
(b) Name the type of cell that was used in Apollo space program for providing electrical power.
Given:
(b) Name the type of cell that was used in Apollo space program for providing electrical power.
Solution:
(i) For the reaction,
Mg ( s ) + Cu 2 + ( aq ) → Mg 2 + ( aq ) + Cu ( s )
∆ G 0 = − nFE 0
= − 2 × 96500 × 2.71
= − 523030 J mol − 1
(ii) During the Apollo space programme, the fuel cell, which harnesses the interaction between hydrogen and oxygen to create water, was employed to generate electricity.
(ii) During the Apollo space programme, the fuel cell, which harnesses the interaction between hydrogen and oxygen to create water, was employed to generate electricity.
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