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Why does a lump of lead have a greater mass than a lump of wood?
The molecules of lead are more massive and are more densely packed together than those of wood.
Why is a sea breeze thunderstorm considered a type of air mass thunderstorm?
A sea breeze may lead to a thunderstorm if the cool sea breeze forces warm air to rise which creates a convection cell that creates strong updrafts that lead to a thunderstorm. This is how a sea breeze may lead to the formation of a thunderstorm.
Difference between specific and general environment?
(a) Specific environment. It includes external forces that directly impacts organizations' decisions and actions and are directly relevant to the achievement of organization's goals. An organization's specific environment is unique to it. For instance, Timex and Rolex both make watches, but their specific environments differ because they operate in distinctly different market niches. The main forces that make up the specific environment are customers, suppliers, competitors and pressure groups.(b) General environment. It includes the broad economic, political/legal, socio-cultural, demographic, technological, and global conditions that affect an organization, although these external forces do not affect the organizations to the extent that changes in their specific environment do, organizations must consider them as they plan, organize, lead and control.
What are some non examples of balanced fores?
Non-examples of balanced forces include situations where an object is accelerating or changing direction, such as a car speeding up, a ball being thrown, or a person pushing a shopping cart forward. In these cases, the forces acting on the object are unbalanced, resulting in a net force that causes motion. Other examples include a falling object or a person pulling on a rope while the other end is anchored, where the forces do not counteract each other evenly. These scenarios illustrate that unbalanced forces lead to changes in an object's state of motion.
Why does metal expands more than any other metal?
Recall that all materials are made up of atoms. At any temperature abovat very he absolute zero (-273degrees meat) the atoms will be moving. In a solid they will be vibrating in fixed positions, in a liquid thy will be jostling past each other and in a gas they will be whizzing past each other igh speeds. When a material is heated, the kinetic energy of that material increand molecules move about more. This means thateach atom will take up more space due to it's movement so the material will expand. When it is cold the kinetic energy decreases, so the atoms take up less space and the material contracts.Some metals expand more than others due to differences in the forces between the atoms / molecules. In metals such as iron the forces between the atoms are stronger so it is more difficult for the atoms to move around . In brass the forces are a little weaker so the atoms are free to move about more. These differences in contraction are used in a bimetallic strip, which is composed of a strip of brass laid along side strip of Iron. When the strip is heated the brass expands more than the iron so the strip beds. It is used in devics such as fire alarms and circuit breakers to either make or break contacts in an electric circuit.The differences in expansion and contraction are even more visible in different states, again due to the amount of force holding the atoms together. A gas will expand the most as its atoms are free from each other so are free to increase in speed the most.Answered by: Sara Al-Assam, Student, Tiffin Girls' School, Kingston
What is the principal force of attraction between CH4 molecules?
The principal force of attraction between CH4 molecules is London dispersion forces. These are weak intermolecular forces that result from temporary fluctuations in electron distribution, causing temporary dipoles which lead to attraction between molecules.
What property of liquids is affected by the strength of the attraction between the molecules?
The property of viscosity is affected by the strength of the attraction between molecules in liquids. Stronger intermolecular forces lead to higher viscosity, making the liquid more resistant to flow.
How does the attraction between molecules affect the ability of a liquid to flow?
The attraction between molecules, known as intermolecular forces, affects the ability of a liquid to flow by influencing the viscosity of the liquid. Stronger intermolecular forces result in higher viscosity and reduced flowability, as molecules require more energy to overcome these forces and move past each other. On the other hand, weaker intermolecular forces lead to lower viscosity and better flowability as molecules can move more easily.
Will the attraction between various combinations of atoms produce bonds which form molecules?
Yes, the attraction between atoms can lead to the formation of chemical bonds, which can then combine to form molecules. These bonds may form through the sharing or transfer of electrons between atoms, resulting in stable configurations of atoms in a molecule.
How does the kinetic energy increasing affect intermolecular forces?
As kinetic energy increases, the movement of molecules becomes more vigorous, which can overcome intermolecular forces that hold them together. This increased motion can lead to a phase change, such as from solid to liquid or liquid to gas, where the intermolecular forces are weakened or broken. Consequently, higher kinetic energy generally results in reduced attraction between molecules, allowing them to move more freely apart.
How do diploe-dipole forces affect the melting and boiling points of substances?
Dipole-dipole forces occur between polar molecules and arise from the attraction between the positive end of one dipole and the negative end of another. These intermolecular forces contribute to higher melting and boiling points compared to nonpolar substances, as more energy is required to overcome the attractions between the polar molecules. The strength of dipole-dipole interactions varies with the polarity of the molecules involved, influencing their phase change temperatures. Overall, stronger dipole-dipole interactions lead to elevated melting and boiling points.
How does the existence of polarity within a molecule lead to its ability to dissolve?
Water has a polar molecule; attraction between electrically charged parts of molecules is the cause of solubility.
What is the force of the attraction between two atoms?
a chemical bond
How do thermal energy and intermolecular forces behave with each other?
Thermal energy is related to the motion of molecules, which can affect the strength of intermolecular forces between them. Higher thermal energy can lead to stronger vibrations and more collisions between molecules, weakening intermolecular forces. Conversely, lower thermal energy reduces molecular motion, enhancing the influence of intermolecular forces.
Why vanderwall forces are weak forces?
The question should be, why is there a force at all! In the case of van der Waals forces, a.k.a. "induced dipole - induced dipole", there is no charge separation, or charge, present to begin with; only temporary dipoles caused by random movement of particles.
What does the tearm high affinity mean?
High affinity refers to a strong attraction or binding between molecules, such as a receptor and its ligand. In biological systems, high affinity typically indicates a high specificity and sensitivity of the interaction between two molecules. This can lead to more efficient and precise cellular responses.
What evidence is there that non-polar molecules attractive each other?
Non-polar molecules can exhibit attractive forces known as London dispersion forces due to temporary fluctuations in electron distribution that create temporary dipoles. These forces are weak but can lead to attractions between non-polar molecules. Additionally, non-polar molecules can also have induced dipole-induced dipole interactions, where their electric fields induce a temporary dipole in nearby non-polar molecules, resulting in attraction.
