What is Flash and fire point? What is the Viscosity index? Answer: Flash and fire point : Flash point : The flash point of an oil is the lowest temperature at which it gives off vapours that will ignite for a moment when small flame is brought near it. Fire point : The fire point of an oil is the lowest temperature at which the vapours of the oil burn continuously for … [Read more...] about Flash and fire point | Viscosity index
Engineering Chemistry
Order of Reaction | Molecularity of a Reaction
What is the Order of Reaction? Define Molecularity of a Reaction. Answer: Order of reaction : Order of reaction is defined as the total number of reacting species (atom, ions or molecules) whose concentration actually alters during the course of chemical reaction. In other words, it is the number of concentration terms which determines the dependence of rate of … [Read more...] about Order of Reaction | Molecularity of a Reaction
consequences of corrosion | electrochemical corrosion
What are the consequences of corrosion? What are the mechanism of electrochemical corrosion (wet corrosion ) ? Answer: Consequence of corrosion : 1. Plant shutdown due to failure. 2. Replacement of corroded equipment. 3. Preventive maintenance (such as painting). 4. Necessity for over design to allow for corrosion. 5. Loss of useful properties of metal and thus … [Read more...] about consequences of corrosion | electrochemical corrosion
Component | Phase | Degree of freedom
Explain (i) Component ; (ii) Phase; (iii) Degree of freedom Phase : A phase is defined as the part of the heterogeneous system which consists of two or more homogeneous parts which are separated from each other by definite boundaries. Examples : (i) CaCO 3CaO + CO2 Phase I II III This system has three phases i.e. solid (CaCO 3 ) , solid (CaO) , gas (CO 2 … [Read more...] about Component | Phase | Degree of freedom
Valence Bond Theory and Molecular Orbital Theory (VBT and MOT)
What is the Valence Bond Theory and Molecular Orbital Theory (VBT and MOT)? What are the Difference between them? Answer: Valence Bond Theory and Molecular Orbital Theory (VBT and MOT) Valence bond theory (VBT) After the bond formation, the combining atoms in a molecule retain their identity. Bonding is explained with the help of atomic orbitals. Only the … [Read more...] about Valence Bond Theory and Molecular Orbital Theory (VBT and MOT)