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What two energy transformations happen when you rub two sticks together and fire is started?
When you rub the sticks together, you convert kinetic energy (from moving the sticks) to internal energy, or heat energy - the sticks will warm up. When the heat energy is sufficient to overcome the activation energy of the combustion (activation energy = minimum amount of energy required to start a chemical reaction), the chemical energy in the sticks/whatever you are combusting is converted to heat and light energy
The energy required for life processes must be extracted from an organism's?
environment
Why do some reactions require energy from their surrounding?
for every reaction there is a minimal amount of energy required. sometimes this amount of energy is provided by the environment and sometimes not. when the energy is not provided by the environment heating is required. all of this is a result of the collisions of atoms .they need energy to form products with other atoms. this energy is obtained from the environment
First ionisation energy?
the first ionisation energy is the energy required to remove the first most loosely bound elecctron from a neutral gaseous atom in its ground state.
What hormone actions will occur when more energy is required by a human?
Blood glucagon increases
What is the minimum energy required to lift an object weighing 200 newtons to a height of 20 meters?
The minimum energy required to lift an object is equal to the work done, which is given by the formula: work = force x distance. In this case, the work done would be 200 N (force) x 20 m (distance) = 4000 joules. Therefore, the minimum energy required to lift the object weighing 200 N to a height of 20 meters is 4000 joules.
Activation energy is the minimum energy required to do what?
For the substance(s) to react
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 is a sentence using the word activation energy?
Activation Energy is the required energy needed in order for a chemical reaction to start.
What is the minimum amounth of energy required for a reaction occur?
The minimum amount of energy required for a reaction to occur is called the activation energy. This energy is needed to break the bonds in the reactant molecules and initiate the chemical reaction. Once the activation energy is overcome, the reaction can proceed on its own.
What is the minimum energy required for molecules to react with each other called?
That is called the activation energy or energy of activation (Ea).
What energy is the minimum amount of energy required for substances undergo change to produce one or more different substances?
activation energy
What term is used to describe the minimum energy needed by particles when they collide?
State the term used to describe the minimum amount of energy required for two colliding particles to rate
What is the minimum energy required to break an HCl molecule into a hydrogen atom?
To break an HCl molecule into a hydrogen atom and a chlorine atom, the minimum energy required is equal to the bond dissociation energy of the H-Cl bond, which is approximately 432 kilojoules per mole.
What is the minimum amount of energy required for two substances to react?
The minimum amount of energy required for two substances to react is called the activation energy. It is the energy needed to break the chemical bonds in the reactants so that new bonds can form in the products. This energy barrier must be overcome for the reaction to occur.
The energy required to remove electrons from an atom is called?
The energy required to remove electrons from an atom is called ionization energy. It is the minimum energy needed to remove an electron from a neutral atom in the gaseous phase.
Which statement defines activation energy?
Activation energy is defined as the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction. That means the energy required to activate atoms or molecules.
