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What is Vapor Density?Vapour density is the density of a vapour in relation to that of hydrogen. It may be defined as mass of a certain volume of a substance divided by mass of same volume of hydrogen.vapour density = mass of n molecules of gas / mass of n molecules of hydrogenTherefore:vapour density = molar mass of gas / molar mass of H2vapour density = molar mass of gas / 2.016vapour density = ~½ × molar mass(and thus: molar mass = ~2 × vapour density)
Its working is based on the principle of tangent law. It having of a small compass needle, pivoted at the centre of a circular box. The box is reserved in a wooden frame having two
Q. Define: current density. Give its unit. The amount of charge passing per unit time through unit area taken perpendicular to the direction of flow of charge at that point is
The least count of the stopwatch is 0.1 second because in stopwatch we can measure milliseconds also.
why gravitational energy for a system of particles is found by first finding the gravitational energy between individual particles and then adding it up? Ans) It is a scalar qua
what is turning force and moment force ?
Q. What is the focal length of a convex lens of focal length 30 cm in contact with a Concave lens of focal length 20 cm ? Is the system a converging or a diverging lens? Ignore
Does a soccer ball go faster in the air on a cold or hot day? On a hot day, the air molecules have much kinetic energy - they move more freely. They will move out of the way of
Hi, Good day. I enjoy watching your physics videos, but I have a question and was wondering if you can answer it for me showing the working. the question is as follows: A flat truc
An oil pump is drawing 25 kW of electric power while pumping oil with ρ = 860 kg/m 3 at a rate of 0.1 m 3 /s. The inlet and outlet diameters of the pipe are 8 cm and 12 cm, respec
Physical arrangement of resistors: Before we look at some problems it is necessary to warn you that physical appearances can be deceptive. When components are mounted they are
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