What is the meaning of dipole moment.?
My teacher just said "Its charge x distance"
I didn't quite understand.
Answer:
Property of a molecule where the presence of polar bonds generates a centre of positive charge and a centre of negative charge that do not coincide; such molecules have regions that are always positively or negatively charged.
Study hint: a dipole moment is like chocolate chip ice cream in which the chips are not uniformly distributed throughout the ice cream. Some parts of the ice cream (molecule) have more chips (charge) than others.
A dipole moment in a compound is the tendency of each of the atoms involved to exhibit a slight charge. Compounds have dipole moments when one atom shows a slightly higher charge than the other(s). For example, in the compound HF (hydrofluoric acid),
H---------F
the H atom exhibits a slight positive charge (+) and the F atom exhibits a slight negative charge (-). The F atom has a higher electronegativity - that is, a greater pull on lone electrons; therefore, it has slightly more polarity (but not enough to make it completely negative). As such, HF exhibits a dipole moment.
Note that in symbolic form, an arrow pointing toward the negative atom (with a cross at the positive end) is used to show dipole moment in a compound. For the HF molecule above, this would be shown as:
H----------F
+---------->
I'm not exactly sure about the dipole moment formula, but another source can probably tell you that.
Dipole moment is due to the degree of charge separation in a molecule. How it is calculated (or how the degree of charge separation can be determined from a dipole moment, since that's what's obervable) is given in most physics textbooks, but normally it's a product of the quantity of charge and the distance between positive and negative.
In physics, the electric dipole moment is a measure of the polarity of a system of electric charges. We define the electric dipole moment p (also called the electric dipole), which has charges +q and -q, and with r, the vector from the negative to the positive charge as
Note that since r is a vector with a certain direction, so is p. Simplistically here it points from negative charge to positive charge.
Hello!
The product of either charge in an electric dipole with the distance separating them.
The product of the strength of either pole in a magnetic dipole with the distance separating them.
In physics, there are two kinds of dipoles (Hellènic: di(s)- = twi- and pòla = pivot, hinge). An electric dipole is a separation of positive and negative charge. The simplest example of this is a pair of electric charges of equal magnitude but opposite sign, separated by some, usually small, distance. By contrast, a magnetic dipole is a closed circulation of electric current. A simple example of this is a single loop of wire with some constant current flowing through it.
Dipoles can be characterized by their dipole moment, a vector quantity. For the simple electric dipole given above, the electric dipole moment would point from the negative charge towards the positive charge, and have a magnitude equal to the strength of each charge times the separation between the charges. For the current loop, the magnetic dipole moment would point through the loop (according to the right hand rule), with a magnitude equal to the current in the loop times the area of the loop.
More Questions and Answers:
What makes pepper hot,the chemical reaction with the toungue???
How a fire estinguisher works?
The correct name for the compound N2O3 is?
Help on this redox equation!?
In a home pool when the PH is far too high,would it be (PH minus) that you would add?
Why is it the percentage abundance is the reason why there are isotopes?
What proteolytic enzyme can jackfruit latex contain that can tenderize meat?
Combining a light gas combined with another light gas will result to a much heavier gas?
What is 2+2?
I didn't quite understand.
Answer:
Property of a molecule where the presence of polar bonds generates a centre of positive charge and a centre of negative charge that do not coincide; such molecules have regions that are always positively or negatively charged.
Study hint: a dipole moment is like chocolate chip ice cream in which the chips are not uniformly distributed throughout the ice cream. Some parts of the ice cream (molecule) have more chips (charge) than others.
A dipole moment in a compound is the tendency of each of the atoms involved to exhibit a slight charge. Compounds have dipole moments when one atom shows a slightly higher charge than the other(s). For example, in the compound HF (hydrofluoric acid),
H---------F
the H atom exhibits a slight positive charge (+) and the F atom exhibits a slight negative charge (-). The F atom has a higher electronegativity - that is, a greater pull on lone electrons; therefore, it has slightly more polarity (but not enough to make it completely negative). As such, HF exhibits a dipole moment.
Note that in symbolic form, an arrow pointing toward the negative atom (with a cross at the positive end) is used to show dipole moment in a compound. For the HF molecule above, this would be shown as:
H----------F
+---------->
I'm not exactly sure about the dipole moment formula, but another source can probably tell you that.
Dipole moment is due to the degree of charge separation in a molecule. How it is calculated (or how the degree of charge separation can be determined from a dipole moment, since that's what's obervable) is given in most physics textbooks, but normally it's a product of the quantity of charge and the distance between positive and negative.
In physics, the electric dipole moment is a measure of the polarity of a system of electric charges. We define the electric dipole moment p (also called the electric dipole), which has charges +q and -q, and with r, the vector from the negative to the positive charge as
Note that since r is a vector with a certain direction, so is p. Simplistically here it points from negative charge to positive charge.
Hello!
The product of either charge in an electric dipole with the distance separating them.
The product of the strength of either pole in a magnetic dipole with the distance separating them.
In physics, there are two kinds of dipoles (Hellènic: di(s)- = twi- and pòla = pivot, hinge). An electric dipole is a separation of positive and negative charge. The simplest example of this is a pair of electric charges of equal magnitude but opposite sign, separated by some, usually small, distance. By contrast, a magnetic dipole is a closed circulation of electric current. A simple example of this is a single loop of wire with some constant current flowing through it.
Dipoles can be characterized by their dipole moment, a vector quantity. For the simple electric dipole given above, the electric dipole moment would point from the negative charge towards the positive charge, and have a magnitude equal to the strength of each charge times the separation between the charges. For the current loop, the magnetic dipole moment would point through the loop (according to the right hand rule), with a magnitude equal to the current in the loop times the area of the loop.
The answers post by the user, for information only, FunQA.com does not guarantee the right.
More Questions and Answers: