no of electrons involved in the electrodeposition of 63.5 gm of cu from a solution of cuso4
Answers
Answered by
2
Electrochemistry
1. Unit of specific conductance is [IOM 2007]
a. ohm-1 cm-1 b. ohm cm
c. ohm-1 cm d. ohm cm-1
Ans : a
Specific conductance = 1
Unit = Ohm 1cm-1
2. An electric current 0.25 Amp were passed through acidified water for 2 hours. What will be the volume of H¬2 produced at NTP?[1 columb of electricity produced 10-5 gm of H2) [IOM 2008]
a. 0.108 litre b. 0.2016 litre
c. 0.36 litre d. 0.4048 litre
Ans : b
Z = 10-5 gm/columb
m = ZIt
= 10 5× 0.25 ×2 × 60×60 = 18 ×10-3 gm of H2.
2gm of H¬2 occupies 22.4 l at NTP
1gm of H¬2 occupies 22.42 l at NTP
18×10-3 gm of H2 occupies 22.42 ×18×10-3
= 0.2016 litre
1. Unit of specific conductance is [IOM 2007]
a. ohm-1 cm-1 b. ohm cm
c. ohm-1 cm d. ohm cm-1
Ans : a
Specific conductance = 1
Unit = Ohm 1cm-1
2. An electric current 0.25 Amp were passed through acidified water for 2 hours. What will be the volume of H¬2 produced at NTP?[1 columb of electricity produced 10-5 gm of H2) [IOM 2008]
a. 0.108 litre b. 0.2016 litre
c. 0.36 litre d. 0.4048 litre
Ans : b
Z = 10-5 gm/columb
m = ZIt
= 10 5× 0.25 ×2 × 60×60 = 18 ×10-3 gm of H2.
2gm of H¬2 occupies 22.4 l at NTP
1gm of H¬2 occupies 22.42 l at NTP
18×10-3 gm of H2 occupies 22.42 ×18×10-3
= 0.2016 litre
Similar questions