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What is piezoelectricity
Piezoelectricity provides us a means of converting electrical energy to presume new geometric positions and mechanical dimensions of the substance are altered. This phenomenon is known as electrostriction. Reverse effect i.e. production of polarization by application of mechanical stresses can occur only if lattice has no center of symmetry, this phenomenon is termed as piezoelectricity. Illustrations- Rochelle salt, Quartz, Barium titante.
A single-effect evaporator is used to concentrate 60000 kg h-1 of a 40 wt % NaOH solution which is fed to the evaporator at 40°C. The concentrated liquid is a 55 wt % NaOH solut
Analgesics - Narcotics and Non-narcotics Analgesics: Drugs which are relieved or decrease pain are known as analgesics. These are of two types, (i) Narcotics: These are majo
Equation shows the combustion of methane. a. By analogy, write a similar chemical equation using ethane, C 2 H 6 . b. Show this equation with Lewis structures. Answer:
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it is impossibe to synthesise orgnic compounds in the lab since life force is essential for their formation -theory is known as
what are postulates of rate theory?
8ml of NaOH solution were used to titrate 10ml of H2C2O4.2H2O,C(1/2H2C2O4.2H2O)=0.05ML.
The spectrum of He is expected to be similar to: (1) H (2) Li + (3) Na (4) He + Ans: Li +
Q. Show the d-orbital energy level splitting? Let us consider one of the consequences of the d-orbital energy level splitting. [Ti (H2o 6 ) 3+ is a d 1 system meaning that t
Which of the following has the least energy: (1) 2p (2) 3p (3) 2s (4) 4d Ans: 2s
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