Electrical Conductivity Determination for Intrinsic
Silicon at 150°C Cakulate the electrical conductivity of intrinsic
silicon at 50 degrees * C C.100 100^ C 200^ C and plot the
conductivity that you have found versus temperature 300 degrees *
C
The electrical conductivity of a 1 M HCN solution is much less
than the conductivity of a 1 M HCl solution because:
-HCl is a weak electrolyte, HCN is a strong electrolyte.
-HCl is a strong electrolyte, HCN is a weak electrolyte.
-HCN contains more atoms than HCl so it has greater mass.
-HCl has a greater mass than HCN.
-The charge on the chloride ion is higher than the charge on the
cyanide ion.
Which of the following are chemical properties? (Select all
that apply)
Texture
Toxicity
Conductivity
Density
Flammability
Reactivity with other materials
4 (a) Derive a relation for the
oxygen pressure dependence of electrical conductivity in NiO.
(b)
Discuss the effects of Cr2O3 additions on the
electrical conductivity of NiO, giving equations describing the
temperature at which the conductivity changes from intrinsic to
extrinsic in relation to the impurity
concentration.
(a) Derive a relation for the oxygen
pressure dependence of electrical conductivity in NiO.
(b)
Discuss the effects of Cr2O3 additions on the
electrical conductivity of NiO, giving equations describing the
temperature at which the conductivity changes from intrinsic to
extrinsic in relation to the impurity
concentration.
The electrical conductivity and the electron mobility for copper
at room temperature are 6.0 X 107 (W.m)-1 and
0.003 m2/V-s, respectively. Compute the number of free
electrons per copper atom.
4 (a) Derive a relation for the oxygen pressure dependence of
electrical conductivity in NiO.
(b) Discuss the effects of Cr2O3 additions on the electrical
conductivity of NiO, giving equations describing the temperature at
which the conductivity changes from intrinsic to extrinsic in
relation to the impurity concentration.