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Enthalpy, H, is defined by the relationship H=U+pV. The enthalpy change, ΔH, for finite changes at constant pressure is given by the expression ΔH = ΔU+pΔV, so making the enthalpy change for a process equals to the heat exchange in a system at constant pressure. For a chemical system which releases or absorbs a gas at constant pressure, the enthalpy change is related to the internal energy change by ΔH=ΔU+Δn.RT, where Δn is the molar change in gaseous component some other process occurring.
The enthalpy, H, is defined by the expression; H=U+pV, Hence for a finite change at constant pressure:
ΔH=ΔU+ pexΔV
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The most important classification of elements is that of non-metallic versus metallic. Metallic elements form solids that are good conductors of electricity, and where bonding is n
PERIODIC TABLE and PERIODICITY OF ELEMENT
In industries 653k is very low temperature so co is the best reducing agent.
A 64-g sample of germanium-66 is left undisturbed for 12.5 hours. At the end of that period, only 2.0 g remain. What is the half-life of this material? 4. With a half-life of 28.8
For p-orbital, the magnetic quantum number has value: (1) 2 (2) 4, - 4 (3) - 1, 0, +1 (4) 0 Ans: - 1, 0, +1
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Q. Explain about frequency of Electromagnetic waves? Electromagnetic waves all along with water waves and sound waves exhibit certain common characteristics. All waves consist
Ion mobility: Ion mobility is related to molar conductivity by the equations: which allows the mobilities, u+ and u- of the cation and anion to be determined from mol
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