✨✨✨✨✨✨✨✨✨✨✨ Which is odd one out on the basis of unit :-
Density, Relative density, pressure, volume
( Plzz answer with reason)
Answers
Answered by
7
Pressure simply is, how much force you out over an area.
Let us understand the relation between pressure, height and density first.
Lets say we have 6 equal weights ad each each weighs of 5 kg. So in total we have 30 kg weight.
If i stack these weights one over the other, the total weight of 30 kg will be acting on the base of the lower weight perpendicularly.
The height of the base from the ground is zero but the pressure here throughout the area is maximum. This is because the total weight that should be counted from top surface of topmost weight, acts at bottom surface of bottom most weight.
Hence measuring the height from the top surface of weight at the top, the height of the stack is not zero but equal to six times the height of each weight
Thus it suggests pressure is directly proportional to height.
Also considering the pressure at a point somewhere midway between of the whole stack, is exactly half as height is half.
This is because the weight is half at that point. Also the volume occupied by the weight is half compared tot the total volume of the stacked weight.
This means the density at this point from the top is half.
This suggests pressure is also directly proportional to pressure.
Thus we can say PP∝ ρ\h∝ ρ\h
As this stack isnt moving anywhere. Hence the net force acting on it is zero. But as the gravity is still acting in it, and weight is product of mass and acceleration due to gravity hence the pressure is also equal to thr aceleration due to gravity
Thus we have final relation between pressure, density, height and acceleration due to gravity as P=ρ g hP=ρ g h
Now talking about the temperature. As increasing the temperature of any medium, the volume expands but the mass remains the same. That means density is inversly proportional to the temperature.
But we can not imply a direct relation between pressure and temperature on our deductions.
Considering gas law at constant volume, and number of moles pressure os directly proportional to temperature.
Let us understand the relation between pressure, height and density first.
Lets say we have 6 equal weights ad each each weighs of 5 kg. So in total we have 30 kg weight.
If i stack these weights one over the other, the total weight of 30 kg will be acting on the base of the lower weight perpendicularly.
The height of the base from the ground is zero but the pressure here throughout the area is maximum. This is because the total weight that should be counted from top surface of topmost weight, acts at bottom surface of bottom most weight.
Hence measuring the height from the top surface of weight at the top, the height of the stack is not zero but equal to six times the height of each weight
Thus it suggests pressure is directly proportional to height.
Also considering the pressure at a point somewhere midway between of the whole stack, is exactly half as height is half.
This is because the weight is half at that point. Also the volume occupied by the weight is half compared tot the total volume of the stacked weight.
This means the density at this point from the top is half.
This suggests pressure is also directly proportional to pressure.
Thus we can say PP∝ ρ\h∝ ρ\h
As this stack isnt moving anywhere. Hence the net force acting on it is zero. But as the gravity is still acting in it, and weight is product of mass and acceleration due to gravity hence the pressure is also equal to thr aceleration due to gravity
Thus we have final relation between pressure, density, height and acceleration due to gravity as P=ρ g hP=ρ g h
Now talking about the temperature. As increasing the temperature of any medium, the volume expands but the mass remains the same. That means density is inversly proportional to the temperature.
But we can not imply a direct relation between pressure and temperature on our deductions.
Considering gas law at constant volume, and number of moles pressure os directly proportional to temperature.
ishwari23:
please can u make it short??
Answered by
1
Answer:
Odd one is Pressure.
Therefore, the option (3) is correct.
Explanation:
- Density of substance is determined from the mass per unit volume. It is directly proportional to the mass of that substance. So this is the quality of a substance due its mass.
- Relative density is the ratio of density of a substance to density of standard material. It is basically the comparison of masses or volume of two substances.
- Volume is amount of space occupied by given mass of substance.
- Pressure is the amount of external force exerted over unit area.
Therefore, density, relative density and volume are the internal characteristics of a body related to its mass. While pressure is external characteristic, does not related to mass of body.
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