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Q. Describe about temperature scales?
The temperature of an entity explains how hot or cold the object is relative to other objects. Scientists utilize two temperature scales-the Celsius scale and the Kelvin scale-to measure temperature. You will be utilizing the Celsius scale in most of your experiments. On the Celsius scale the freezing point of the water is defined as 0 degrees and the boiling point of water is defined as 100 degrees.
Limitations of second law of thermodynamics
The enthalpy change (ΔH) in a reaction is equal to the heat input under conditions of constant pressure and temperature. It is not equal to the total energy change, as work may be
#question.synthesis , postad date 1/12/2013, australia
what is molality?
Octane number - Characteristics of hydrocarbons It is utilized for measuring the knocking character of fuel utilized in petrol engine. The octane quantity of an offered sample
Bond formed in crystal by anion and cation is: (1) Ionic (2) Metallic (3) Covalent (4) Dipole Ans: Ionic
Explain about Parke Process? Parke method for refining lead, which is also a concentration process for silver, relies upon the selective dissolution of silver in molten zinc.
Q)why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction? Ans) The Standard free energy of formation of Cu2S is greater than
When the azimuthal quantum number has a value of l=0 , the shape of the orbital is: (1) Rectangular (2)Spherical (3)Dumbbell (4)Unsymmetrical Ans: Spherical
Why a covalent bond is directional? Covalent bond is formed as a result of pairing of two electrons in atomic orbitals of two atoms. Bond then must lie along the direction of
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