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Does the surface energy increase or decrease with increase in planar density?
The surface energy decreases with an increase in planar density. This is because a higher planar density means more atoms are closely packed together, leading to a decrease in the number of surface atoms and therefore a decrease in surface energy.
The work required to accelerate an object on a frictionless surface from a speed v to a speed 2v is?
The work required to accelerate an object from speed v to 2v on a frictionless surface is equal to the change in kinetic energy, which can be calculated as 3/2 times the initial kinetic energy. This increase in kinetic energy corresponds to the work done by the force causing the acceleration.
When carbon dioxide in the atmosphere increases, the amount of energy absorbed by Earth’s surface should?
increase, causing the planet to warm due to the greenhouse effect.
What is the latent heat of fusion?
The amount of energy it takes to boil a substance
What statements about activation energy is correct?
Activation energy is the minimum amount of energy required for a chemical reaction to occur. An increase in activation energy leads to a decrease in reaction rate. Catalysts lower the activation energy required for a reaction to proceed, increasing the reaction rate. Activation energy does not affect the overall energy change of a reaction, only the speed at which it occurs.
Why the energy saver bulb is coiled?
To have enough bulb or surface area to produce the required amount of light.
How does surface energy relate to coefficient of frictions?
Surface energy can be viewed as the amount of work required to move a molecule from the bulk to the surface. So if something has high surface energy, it is has a low propensity to interact with another surface, thus giving it a lower COF.
What kind of surface increase friction?
energy
What is activators used for?
Activation energy in chemistry is the amount of energy required to start a reaction. For every chemical reaction, a certain amount of energy is required to start it
Does the surface energy increase or decrease with increase in planar density?
The surface energy decreases with an increase in planar density. This is because a higher planar density means more atoms are closely packed together, leading to a decrease in the number of surface atoms and therefore a decrease in surface energy.
Why do spacecraft launced from Earth need to reach a specific speed to escape Earth's surface?
More speed means more energy. A certain amount of energy is required to get away from Earth. At a lesser speed, it will simply fall back to Earth.More speed means more energy. A certain amount of energy is required to get away from Earth. At a lesser speed, it will simply fall back to Earth.More speed means more energy. A certain amount of energy is required to get away from Earth. At a lesser speed, it will simply fall back to Earth.More speed means more energy. A certain amount of energy is required to get away from Earth. At a lesser speed, it will simply fall back to Earth.
What brings thermal energy to the surface?
Thermal energy is the total amount of energy in a substance. A lot of the things could bring it to the "surface"
The work required to accelerate an object on a frictionless surface from a speed v to a speed 2v is?
The work required to accelerate an object from speed v to 2v on a frictionless surface is equal to the change in kinetic energy, which can be calculated as 3/2 times the initial kinetic energy. This increase in kinetic energy corresponds to the work done by the force causing the acceleration.
Btu required to increase water 1 degree F?
One btu is the amount of energy it takes to heat 1 pound of water 1 degree Fahrenheit.
What is energy is a minimum amount of energy required for substances to react?
Activation energy is the minimum amount of energy required for substances to react. It is necessary to break the existing bonds in the reactants before new bonds can form in the products.
What does it mean to say that a material has a high or low capacity?
The specific heat capacity of a substance is the amount of energy required to increase the temperature of a said substance 1o K. The capacity is measured in kilojoules divided by kilogram time degrees Kelvin (kJ/Kg k). So, if the specific heat capacity of a substance is high, it requires a very large amount of energy to increase the temperature, and if it has a low specific heat capacity, the required energy will be lower.
Can the earth be tilted more?
Huge amounts of energy would be required to increase or decrease the tilt of the Earth, and the result would likely be devastation over the entire surface of the planet.
