Make the following conversion. 60 dkm = _____ km 6,000 0.060 60,000 0.60

All of the following statements, except one, are important postulates of the kinetic-molecular theory of gases. Which one is not

Harman [31]

Answer:

B. The time during which a collision between two molecules occurs is negligibly short compared to the time between collisions

Explanation:

Kinetic molecular theory postulates:-

The gas is composed of small molecules are they are in continuous random motion and having elastic collisions with one another and also with the walls of the container.
The molecules of the gas does not exert any kind of repulsive or attractive forces on each other and they their size is negligible as compared to the difference between them.
Pressure exerted by the molecules of the gas results from the collisions which is happening between the molecules of the gas and the walls of the container.
Average kinetic energy of molecules of the gas is directly proportional to absolute temperature.

Hence, The correct option is:- B. The time during which a collision between two molecules occurs is negligibly short compared to the time between collisions. This is not an important postulate of the kinetic molecular theory.

6 0

4 years ago

Think of a bath sponge. What happens when you squeeze it? How could you explain it from the point of view of the state of the ag

harkovskaia [24]

Answer:

What happens when it is squeezed is that its volume increases, the pressure of the material increases.

Explanation:

This is due to the fact that the elastic modulus of the sponge is high and withstands broad forces without deforming its structure, since the force is made within the proportional limit of its particles without modifying or permanently deforming them, that is why when stopping doing pressure or force on it its shape returns to being the original, this also happens due to the phenomenon of resilience

3 0

3 years ago

Predict the major organic product formed when the compound shown below undergoes a reaction with lialh4. draw only the product w

zhuklara [117]

LiAlH₄ is used as strong reducing agent. The hydride produced acts as a nucleophile and attacks the electrophillic carbon of carbonyl group. In given example two reactions are observed.

Reaction 1:
In first step LiAlH₄ when treated with Ester produces corresponding Aldehyde and alcohol.

Reaction 2:
This aldehyde produced further reacts with LiAlH₄ to give a reduced product (Alcohols). In this case Butanol is produced.

The reaction schemes are shown as felow,