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Answers
Explanation:
1.Let us consider the pressure exerted by the gas to be ‘p,’
The volume of the gas be – ‘v’
Temperature be – T
n – be the number of moles of gas
Universal gas constant – R
According to Boyle’s Law,
At constant n & T, the volume bears an inverse relation with the pressure exerted by a gas.
i.e. v∝1p ………………………………(i)
According to Charles’ Law,
When p & n are constant, the volume of a gas bears a direct relation with the Temperature.
i.e. v∝T ………………………………(ii)
According to Avogadro’s Law,
When p & T are constant, then the volume of a gas bears a direct relation with the number of moles of gas.
i.e. v∝n ………………………………(iii)
Combining all the three equations, we have-
v∝nTp
or pv=nRT
where R is the Universal gas constant, which has a value of 8.314 J/mol-K
2.C2 is diamagnetic because all of its electrons are paired
3. Dipole moments occur due to the difference in electronegativity between two chemically bonded atoms.
A bond dipole moment is a measure of the polarity of a chemical bond between two atoms in a molecule. It involves the concept of electric dipole moment, which is a measure of the separation of negative and positive charges in a system.
In case of NH3, N has more electronegativity than H, so the charge is directed from hydrogen to nitrogen. This implies that the resultant dipole moment add up in a same direction.
In case of NF3, F has more electronegativity than N, so the charges move in direction from nitrogen to fluorine. This implies that resultant dipole moment being in opposite directions cancel out each others effect.
Hence NH3 has more dipole moment than NF3.
4.The photoelectric effect could be explained considering that radiations consist of small packets of energy called quanta. These packets of energy can be treated as particles. On the other hand, radiations exhibit a phenomenon of interference and diffraction which indicated that they possess wave nature. So it may be concluded that electromagnetic radiations possess dual nature.
1.Particle nature
2.Wave nature
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