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What components have the most total energy in an endothermic reaction?
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What happens in a exothermic reaction?
In an exothermic reaction, the total making and breaking of bonds results in a net release of energy.
What are differences between endothermic and exothermic reactions examples?
The main differences between exothermic reactions and endothermic reactions are: Exothermic reactions are reactions that give off energy (light, electrical or mainly heat), causing the surroundings to warm up. Endothermic reactions are reactions that absorb energy, causing the surroundings to cool down. The products of an exothermic reaction have less energy, or less total enthalpy, than of it's reactants. This is due to the reactants containing more stored energy because energy from external sources is not required. This also gives the products more stability because in order to achieve a reversible reaction and break the chemical bonds of the products, you will need to apply more energy to it. The opposite is for endothermic reactions. The products of the reaction have a greater total enthalpy of the reactants, causing the reactants stored energy to decrease. This produces less stable products that need less energy to break their bonds in a reversible reaction. Finally most exothermic reactions are spontaneous, where as most endothermic reactions are not spontaneous as they generally need energy applied to them before they start.
Is this statement true or false When nuclear reactions happen the total amount of energy changes It is the mass plus energy before and after the reaction that are equal?
That is false. Assuming an exothermic reaction, e.g., a fusion of hydrogen to helium:The total amount of mass before and after the reaction is the same. (Any energy leaving the atom has a mass equivalent.)The total amount of energy before and after the reaction is the same. (The energy was there previously, in the form of potential energy).
What is the law of the conversation of matter?
energy that can not be created or destroyedthe total number of atoms cannot change during a reaction.
How can stoichiometry be used in tandem with heats of formations to calculate the energy of a reaction?
Through the application of Hess's Law (of Constant Heat Summation) one can use heats of formation to find the overall energy release or requirement. The overall reaction energy is equal to the difference between total heats of formation of the products and the total heats of formation of the reactants.
What is an exothermic reaction?
An exothermic reaction is a chemical reaction that is done by the release of heat. It gives out energy to its surroundings. The energy needed for the reaction to occur is less than the total energy released.
What happens in a exothermic reaction?
In an exothermic reaction, the total making and breaking of bonds results in a net release of energy.
What are differences between endothermic and exothermic reactions examples?
The main differences between exothermic reactions and endothermic reactions are: Exothermic reactions are reactions that give off energy (light, electrical or mainly heat), causing the surroundings to warm up. Endothermic reactions are reactions that absorb energy, causing the surroundings to cool down. The products of an exothermic reaction have less energy, or less total enthalpy, than of it's reactants. This is due to the reactants containing more stored energy because energy from external sources is not required. This also gives the products more stability because in order to achieve a reversible reaction and break the chemical bonds of the products, you will need to apply more energy to it. The opposite is for endothermic reactions. The products of the reaction have a greater total enthalpy of the reactants, causing the reactants stored energy to decrease. This produces less stable products that need less energy to break their bonds in a reversible reaction. Finally most exothermic reactions are spontaneous, where as most endothermic reactions are not spontaneous as they generally need energy applied to them before they start.
What is the formula for perfectly elastic collision?
Total momentum before = total momentum afterTotal kinetic energy before = total kinetic energy afterSum of x-components of velocity before = sum of x-components of velocity after.Sum of y-components of velocity before = sum of y-components of velocity after.Sum of z-components of velocity before = sum of z-components of velocity after.
Is this statement true or false When nuclear reactions happen the total amount of energy changes It is the mass plus energy before and after the reaction that are equal?
That is false. Assuming an exothermic reaction, e.g., a fusion of hydrogen to helium:The total amount of mass before and after the reaction is the same. (Any energy leaving the atom has a mass equivalent.)The total amount of energy before and after the reaction is the same. (The energy was there previously, in the form of potential energy).
Can energy be released during chemical reaction can it be absorbed can chemical reaction take place in which energy is neither absorbed or released?
The simple ANSWER IS yes!!! The reaction that does this is referred to as 'Exothermic'. Energy can be absorbed during a chemical reacton, but it needs an activation energy to start the reaction. For all chemical reactions there is always a change of energy. No reaction is ever 'energy less'. However, the exchange of energy can be very small. Example of an exothermic reaction is sulphuric acid and sodium hydroxide. if you hold the beaker the two reactants are in , it will feel warm. This is an exothertmic reaction. For the thermal decomposition of calcium carbonate, you have to heat it up; you are driving energy in, so it is an endothermic reaction. Other endo thermic reactions, may feel cold, they are absorbing heat at ambient room temperature.
He total amount of energy before and after a chemical reaction is the same. Therefore energy is .?
Conserved.
The total amount of energy before and after a chemical reaction is the same .Thus energy is what?
Therefore energy is conserved.
Comparison between impulse and reaction turbines?
in the case of impule turbine total energy at inlet is kinetic energy and in case reaction turbine energy at inlet is kinetic and pressure......
What is the law of the conversation of matter?
energy that can not be created or destroyedthe total number of atoms cannot change during a reaction.
What is degree of reaction?
In turbomachinery,degree of reaction is defined as the ratio of energy transfer due to reaction to the total energy transfer.
What is degree of reaction in turbine?
Degree of reaction can be defined as the ratio of pressure energy change in the blades to total energy change of the fluid.. For eg If we have 50% KE and 50% PE then the degree of reaction is 0.5
