Every chemical reaction requires a minimum amount of energy to undergo reaction.
The total energy required is Threshold energy. The chemicals have some internal energy and they require some extra energy which is known as activation energy.
The reaction occurs when two molecules or atoms come closer to each other and for this they need kinetic energy.
Now for an effective collision the two molecules or atoms should collide with a minimum amount of energy so that they may undergo reaction so again they need some energy
These kinetic energy and energy for effective collision is actually called as activation energy.
Answer:
A. 1350
You multiply 18.21HNO3* 1mol MgN2O6 * 148.30MgN2O6
Then divide it by the 2mol HNO3 to get 1350
The molar amount of gas can most likely be found by using the ideal gas law. This is because the ideal gas law states pV = nRT. P, V, and T are the pressure, volume, and temperature, which are the known variables. The R stands for the Universal Constant of Gases; also known. Therefore, the unknown is n, the number of moles (molar amount) of gas, and so you would solve for n from the law.
Answer: A) The molar amount of gas
Credit to: @Edufirst
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