Question

# A lead storage battery has initially $$200\ g$$ of lead and $$200\ g$$ of $$PbO_{2}$$, plus excess $$H_{2}SO_{4}$$. How long could this cell deliver a current of $$10\ amp$$, without recharging, if it was possible to operate it so that the reaction goes to completion?

A
2.48 hour
B
3.48 hour
C
4.48 hour
D
6.48 hour

Solution

## The correct option is C $$4.48\ hour$$$$mass \ of\ Pb=200 g$$$$mass\ of\ PbO_{2}=200 g$$$$mass\ of PbO_{2}=\dfrac{200}{239.2}=0.8361\ mole$$$$mass\ of Pb\ in PbO_{2}=173.244 g$$$$total\ mass\ of Pb=200+173.244$$$$=373.244$$$$w=Zit$$$$373.24= \frac{207.2}{1\times 96500}\times 10\times t$$$$t=17383.23\ sec$$$$t= 4.8286\ hours$$Chemistry

Suggest Corrections

0

Similar questions
View More

People also searched for
View More