A.
As the density of a substance increases, the attraction among its particles increases.
Explanation:
The relationship between density and particle attraction is that as the density of a substance increases, the attraction among its particles increases.
- Density is the function of the mass and volume of body.
- Mass is the amount of particles a substance contains. It is directly related to the density.
- Volume is the amount of space a substance occupies. It is inversely related to the density.
- A substance will have a large volume if it is poorly packed and the attraction between particles is very weak or low.
- Particles that are well packed have high attraction between their particles. This reduces their volume and the density will increase.
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Work done by me for using force of 4 N to push an object 3 m away is 12 J.
<u>Explanation:</u>
Work done on any object is defined as the force required to displace that object from its original position. In other terms, the work done is the measure of force utilized for moving an object. So mathematically it is represented as the product of force with the displacement of the object due to that force.
Then, here it is given that force of about 4 N is used to displace the object to 3m. Thus,
So, 12 J of work is done by me to push an object 3 m away with the force of 4 N.
Answer:
.055 mol/L
Explanation:
Henry's Law is about solubility of a gas in a liquid which is dependent on the partial pressure of gas above the liquid . According to it
C = k P where C is concentration of gas in the liquid , k is henry's constant and P is partial pressure of the gas .
Given k = .159 mol/L.atm
P = 265 mm of Hg
= 265 / 760
= .34868 atm
C = kP
= .159 x .34868
= .055 mol/L
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