The difference between the energy levels of a 2-level atomic system is 1.5 eV. Determine the temperature at which the rate of spontaneous emission would be equal to the rate of stimulated emission.
option
a). 3.68 K
b). 301 K
c). 2.51×104k
d). 1.67×104k
Answers
ANSWER
BaCl2(aq)+Na2SO4(aq)→BaSO4(s)+2NaCl(aq)
The types of reactions are (b) Precipitation and (d) Double displacement.
The types of reactions are (b) Precipitation and (d) Double displacement. A precipitate of bariumsulphate is obtained.
The types of reactions are (b) Precipitation and (d) Double displacement. A precipitate of bariumsulphate is obtained. In double displacement reaction, two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.
EXPLANATION
Chemical reactions involve chemical changes that result in the formation of new compounds under some specific conditions. Chemical equations can help us understand the chemical reactions between various elements or compounds. Chemical equations show the reactants and the products that are involved in these reactions. The compounds that participate in a chemical reaction are called reactants. The reactants might be in the solid, gaseous, or liquid phase.