Question

A NiMH battery containing 4.10 g of NiO(OH) was 50% discharged when it was connected to a charger with an output of 2.60 A at 1.3 V. How long does it take to recharge the battery?

Answer 1

Recharge battery contains 4.10 g of NO(OH) In that 50% is damaged means 205 g of NiO(OH) has been depleted from the battery Calculate the mass wehn 50% is damaged as follows (4.10 g) 50% 50 The reaction for dissociation is as follows MO(OH) +H20+ei)OH Calculate the number of moles of electrons neede to recover 2.05 g of Nio(OH) as follows [2 05g of Mo(o1mol 1 mole of e 91.70 g 1mole of Nio (OH) 0.0224 moles Calculate the time as follows (o 0224 moles of 96500 C At(eec)1 l mole e 1.3 A 1663 sec Calculate the time in minutes as follows (1 minute) 60 sec (1663 sec) 27.7 minutes Therefore, time required to recharge the battery is 27.7 minutes

Cuurent is 2.6 V, so in place 1.3 v2.6 will come.

So divide the final answer with 2

27.7/2=13.85 minutes

therefore, the time required to recharge the battery is 13.85 minutes.