19985
If one end of a piece of a metal is heated, the other end becomes hot after some time. This is due to
1 Energised electrons moving to the other part of the metal
2 Resistance of the metal
3 Mobility of atoms in the metal
4 Minor perturbation in the energy of atoms
Explanation:
A metal is characterised by the presence of free electrons which move faster due to increase of temperature.
ELECTROCHEMISTRY
19986
Conductivity of a solution is directly proportional to
1 Dilution
2 Number of ions
3 Current density
4 Volume of the solution
Explanation:
(b) Conductivity of a solution is directly proportional to the number of ions.
ELECTROCHEMISTRY
19987
The increase in equivalent conductance of an electrolyte solution with dilution is due to the increase in
1 Ionic attraction
2 Molecular attraction
3 Degree of association of the electrolyte
4 Degree of ionisation of the electrolyte
Explanation:
On dilution, the number of charge carriers per \(m ^3\) decreases but the volume increases. Consequently, the ionic mobility increases which increase equivalent conductance.
ELECTROCHEMISTRY
19988
Which of the following conducts electricity
1 Fused \(NaCl\)
2 \(C{O_2}\)
3 \(B{r_2}\)
4 \(Si\)
Explanation:
(a)\(NaCl\) $⇒$ \(N{a^ + } + C{l^ - }.\) So it conduct electricity.
ELECTROCHEMISTRY
19989
Which of the following shows electrical conduction
19985
If one end of a piece of a metal is heated, the other end becomes hot after some time. This is due to
1 Energised electrons moving to the other part of the metal
2 Resistance of the metal
3 Mobility of atoms in the metal
4 Minor perturbation in the energy of atoms
Explanation:
A metal is characterised by the presence of free electrons which move faster due to increase of temperature.
ELECTROCHEMISTRY
19986
Conductivity of a solution is directly proportional to
1 Dilution
2 Number of ions
3 Current density
4 Volume of the solution
Explanation:
(b) Conductivity of a solution is directly proportional to the number of ions.
ELECTROCHEMISTRY
19987
The increase in equivalent conductance of an electrolyte solution with dilution is due to the increase in
1 Ionic attraction
2 Molecular attraction
3 Degree of association of the electrolyte
4 Degree of ionisation of the electrolyte
Explanation:
On dilution, the number of charge carriers per \(m ^3\) decreases but the volume increases. Consequently, the ionic mobility increases which increase equivalent conductance.
ELECTROCHEMISTRY
19988
Which of the following conducts electricity
1 Fused \(NaCl\)
2 \(C{O_2}\)
3 \(B{r_2}\)
4 \(Si\)
Explanation:
(a)\(NaCl\) $⇒$ \(N{a^ + } + C{l^ - }.\) So it conduct electricity.
ELECTROCHEMISTRY
19989
Which of the following shows electrical conduction
19985
If one end of a piece of a metal is heated, the other end becomes hot after some time. This is due to
1 Energised electrons moving to the other part of the metal
2 Resistance of the metal
3 Mobility of atoms in the metal
4 Minor perturbation in the energy of atoms
Explanation:
A metal is characterised by the presence of free electrons which move faster due to increase of temperature.
ELECTROCHEMISTRY
19986
Conductivity of a solution is directly proportional to
1 Dilution
2 Number of ions
3 Current density
4 Volume of the solution
Explanation:
(b) Conductivity of a solution is directly proportional to the number of ions.
ELECTROCHEMISTRY
19987
The increase in equivalent conductance of an electrolyte solution with dilution is due to the increase in
1 Ionic attraction
2 Molecular attraction
3 Degree of association of the electrolyte
4 Degree of ionisation of the electrolyte
Explanation:
On dilution, the number of charge carriers per \(m ^3\) decreases but the volume increases. Consequently, the ionic mobility increases which increase equivalent conductance.
ELECTROCHEMISTRY
19988
Which of the following conducts electricity
1 Fused \(NaCl\)
2 \(C{O_2}\)
3 \(B{r_2}\)
4 \(Si\)
Explanation:
(a)\(NaCl\) $⇒$ \(N{a^ + } + C{l^ - }.\) So it conduct electricity.
ELECTROCHEMISTRY
19989
Which of the following shows electrical conduction
19985
If one end of a piece of a metal is heated, the other end becomes hot after some time. This is due to
1 Energised electrons moving to the other part of the metal
2 Resistance of the metal
3 Mobility of atoms in the metal
4 Minor perturbation in the energy of atoms
Explanation:
A metal is characterised by the presence of free electrons which move faster due to increase of temperature.
ELECTROCHEMISTRY
19986
Conductivity of a solution is directly proportional to
1 Dilution
2 Number of ions
3 Current density
4 Volume of the solution
Explanation:
(b) Conductivity of a solution is directly proportional to the number of ions.
ELECTROCHEMISTRY
19987
The increase in equivalent conductance of an electrolyte solution with dilution is due to the increase in
1 Ionic attraction
2 Molecular attraction
3 Degree of association of the electrolyte
4 Degree of ionisation of the electrolyte
Explanation:
On dilution, the number of charge carriers per \(m ^3\) decreases but the volume increases. Consequently, the ionic mobility increases which increase equivalent conductance.
ELECTROCHEMISTRY
19988
Which of the following conducts electricity
1 Fused \(NaCl\)
2 \(C{O_2}\)
3 \(B{r_2}\)
4 \(Si\)
Explanation:
(a)\(NaCl\) $⇒$ \(N{a^ + } + C{l^ - }.\) So it conduct electricity.
ELECTROCHEMISTRY
19989
Which of the following shows electrical conduction
19985
If one end of a piece of a metal is heated, the other end becomes hot after some time. This is due to
1 Energised electrons moving to the other part of the metal
2 Resistance of the metal
3 Mobility of atoms in the metal
4 Minor perturbation in the energy of atoms
Explanation:
A metal is characterised by the presence of free electrons which move faster due to increase of temperature.
ELECTROCHEMISTRY
19986
Conductivity of a solution is directly proportional to
1 Dilution
2 Number of ions
3 Current density
4 Volume of the solution
Explanation:
(b) Conductivity of a solution is directly proportional to the number of ions.
ELECTROCHEMISTRY
19987
The increase in equivalent conductance of an electrolyte solution with dilution is due to the increase in
1 Ionic attraction
2 Molecular attraction
3 Degree of association of the electrolyte
4 Degree of ionisation of the electrolyte
Explanation:
On dilution, the number of charge carriers per \(m ^3\) decreases but the volume increases. Consequently, the ionic mobility increases which increase equivalent conductance.
ELECTROCHEMISTRY
19988
Which of the following conducts electricity
1 Fused \(NaCl\)
2 \(C{O_2}\)
3 \(B{r_2}\)
4 \(Si\)
Explanation:
(a)\(NaCl\) $⇒$ \(N{a^ + } + C{l^ - }.\) So it conduct electricity.
ELECTROCHEMISTRY
19989
Which of the following shows electrical conduction
