Answer: The question has some details missing. Here is the complete question ; An molecule adsorbed at one site on a surface. An oxygen molecule is adsorbed onto a small patch of the surface of a catalyst. It's known that the molecule is adsorbed on 1 of 576 possible sites for adsorption (see sketch at right). Calculate the entropy of this system. Round your answer to 3 significant digits.
Explanation:
The stefan boltzmaan constant for entropy is given by ;
- we are given that 576 total possible sites in which O2 can get absorbed
- w = 576, k = 1.38 x 10-23J/k
plugging the values into the equation ;
S = 1.38 x 10-23J/k X In(576)
Entropy of the system = 8.79 X 10-23J/k
Answer: (c) 2000 N
Explanation:
Given Data :
▪ Initial velocity = zero ( body is at rest)
▪ Distance travelled = 100m
▪ Final kinetic energy = 200000J
To Find :
▪ Resultant force acting on the car.
Therefore:
W = F × d = ΔK ----------------- eq 1.
where,
W = work done
F = applied force
d = distance
ΔK = change in kinetic energy
Calculation :
→ F × d = Kf - Ki ----------------- eq 2.
Where:
Kf = Final kinetic energy = 200000
Ki = initial kinetic energy = 0
Substituting our values into the formula from equation (2)
→ F × 100 = 200000 - 0
→ F = 200000/100
→ F = 2000N
I think it would be TRUE but I’m not 100% sure.... please let me know if I’m right or wrong
Answer: 
Explanation:
The Kelvin (
), is the unit of temperature of the scale created by the British physicist William Thomson (Lord Kelvin) in 1848, <u>taking as a base the Celsius scale</u>, establishing the zero point for this scale in the absolute zero which is in 
.
This was achieved by observing that when a gas cools, its volume decreases proportionally to its temperature. That is, <u>for each degree of temperature that the gas decreases, its volume also decreases by a certain percentage.
</u>
After which, Kelvin made the calculations and it turned out that at a temperature of the volume of the gas would be zero (theoretically).
It should be noted that the Kelvin is the unit of temperature of the International System of Units and that although the scale starts at absolute zero (theoretical), in which no molecule should move, in reality it is not so, because according to quantum physics, at this temperature the molecules retain a residual movement.
