Solid -(s)
liquid - (l)
gas - (g)
aqueous - (aq)
Answer:
This is because, the is less chance of trapping impurities in the developing crystal lattice
The answer is b) Water.
a) and c) options are elements and d) option is a mixture.
Answer:
True
Explanation:
<u>The first law of thermodynamics</u> establishes a relationship between the internal energy of the system and the energy that it exchanges with the environment in the form of heat or work.
The first law of thermodynamics determines that the internal energy of a system increases when heat is transferred or work is done on it.
Like all the principles of thermodynamics, the first principle is based on systems in equilibrium.
On the other hand, it is likely that you have heard more than once that energy is neither created nor destroyed, only transformed. It is the general principle of energy conservation. Well, the first law of thermodynamics is the application to thermal processes of this principle.
The universe as a whole could be considered an isolated system, and therefore its total energy remains constant.
Answer:
is the molar concentration of Cu(II) ions in the unknown solution.
Explanation:
Using Beer-Lambert's law :
Formula used :
where,
A = absorbance of solution
C = concentration of solution
l = length of the cell =
= molar absorptivity of solution
A Beer's law plot is between absorbance and concentration.
We have:
A = 0.55
The slope of the Beer's law plot = m = 310 L/mol
So, the concentration of the solution is:
is the molar concentration of Cu(II) ions in the unknown solution.
