Energy transfer is an extension of Newton’s Laws. Energy cannot be created nor destroyed; it can only be transferred. The moving body has energy, called kinetic energy, and this energy will be transferred into something else as the body slows. Likewise, the car crashing into you will transfer its kinetic energy to you. The other type of energy is potential energy, or stored energy. Think of a spring. When you pull it, you are storing energy. When you let it go, this potential energy is transferred into kinetic energy as motion. Car manufacturers engineer a purposeful flaw into the structure, the Crumble Zone. This Crumble Zone is a structurally assigned place for kinetic energy to be transferred into potential energy in the case of an accident. When two cars collide, the kinetic energy is used up to fold the metal of the auto, keeping the destructive energy out of the passengers. The same science is behind the recommendation that motorcyclists wear helmets and body armor. Auto crumble zones, as well as air bags, helmet foam and Kevlar, are all methods for converting harmful kinetic energy into safe potential energy.
The balanced chemical reaction is given as:
Now, convert into litres.
So,
Density is equal to the ratio of mass to the volume.
where, M = mass and V= volume
Substitute the value of density and volume in formula to get the value of mass.
Now, number of moles of gas=
=
According to the reaction, 2 moles of sodium azide gives 3 moles of nitrogen gas.
Now, in 24.00 moles of nitrogen gas produced from= of nitrogen gas, moles of sodium azide.
number of moles of sodium azide =
Mass of sodium azide in g = .
=
=
Thus, mass of sodium azide which is required to produce of nitrogen gas =
The answer is higher.
You should know that the London dispersion force is the weakest intermolercular attractive force while the hydrogen bonds form a high attractive intermolecular force, so you have to expect that in molecules forming hydrogen bonds the molecules will be more attached to each other than in similar-sized molecules that interact by London dispersion forces only, which takes you to conclude that the melting point of the molecules forming hydrogen bonds will be higher.
Douse papaya salad with a black bean sauce was
Answer:
10.04 g of NaOH is required for neutralization
Explanation:
neutralization reaction:
Molar mass of NaOH = 40 g/mol
Molar mass of HCl = 36.5 g/mol
So, 9.16 g of HCl = moles of HCl = 0.251 moles of HCl
According to neutralization reaction, 1 mol of NaOH is required to neutralize 1 mol of HCl
So, 0.251 moles of NaOH are required to neutralize 0.251 moles of HCl
So mass of NaOH required for neutralization = () g = 10.04 g