Answer:
The correct approach will be "Predict and control
".
Explanation:
- Psychology seems to be the study including its thought process as well as behavior. The psychological layouts in this article that the individual requires to understand, feel, and so on, whereas action seems to be how someone behaves.
- Psychologists as well as physicians speculated about either the relation was seen between the mind and perhaps the nervous system while philosophers struggled to understand the links between the organs.
The step in which reactant escape from the surface into the gas phase is known as desorption
Desorption is a phenomenon whereby a substance is released from or through a surface. One substance is released from another either from the surface or through the surface. Desorption can occur when the system is in the state of sorption equilibrium between bulk (fluid) and adsorbing surface.( boundary separating two fluids)
uds )
Molarity is the most convenient way to express concentration.
Mathematically, molarity is expressed as
In present case,
mass of solute (KCl) = 36 g
molecular weight of KCl = 74.55 g/mol
volume of solution = 100 ml = 0.1 l
∴ Molarity =
= 4.829 M
Thus, conc. of saturated KCl at 20 oC is 4.829 M
Answer:
The boiling point decreases as the volume decreases.
Explanation:
The Temperature - Volume law otherwise called as Charles law is applied, which says that the volume of the given gas at constant pressure is directly proportional to the temperature measured in Kelvin. As the volume increases, the temperature also increases, if the volume decreases, then the temperature also decreases.
As per the Charles law, here the volume is decreased from 50 ml to 25 ml so the boiling point also decreases.
The amount of Silicon left after 300 years is 75g
It is given that the initial amount of Si is 100 times decay is 300 years and the half-life of Silicon is 710 years.
The radioactive decay formula is given by,
A = A₀ x 2^(-t/h);
where;
A is the resulting amount after t time, Ao is the initial amt (t=0),t is the time of decay, and h is the half-life of the substance.
On substituting the values from the given we get,
A = 100x2^(-300/710)
A = 100 x 0.746112347
A = 74.6112347 grams left after 300 yrs
Therefore, the number of grams of silicon left after 300 years is 74.6112347g. This value could be rounded off to 75 grams as in the whole number
To know more about half-life, click below:
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