The process that occurs at the anode in an
electrochemical cell is the loss of electrons. The answer is number 2. Oxidation occurs as electrons are lost at the
anode at one of the electrodes in both an electrolytic cell and a
voltaic cell.
Evaporation means that water is heated up to 100 degrees Celsius, where it turns from liquid to gas.
So...as the temperature increases, it turns to gas, which is D.
This is key: remember it's only an ion when it transfers electrons! If it isn't going through the process of the transfer of electrons it's a neutral atom.
Chlorine.
You can work this out by counting along the periodic table in rows. Chlorine falls as the 5th element in the 3rd down row of the p block (left hand side) of the periodic table.
Answer: Cesium chloride dissolves in pure water has > 0.
Explanation:
Entropy is the measure of randomness or disorder of a system. If a system moves from an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.
is positive when randomness increases and is negative when randomness decreases.
a)
As 2 moles of gas are converting to 1 mole of gas and 1 mole of liquid, the randomness decreases and hence is negative.
b)
As gas molecules are converting into aqueous and liquid form, the randomness decreases and hence is negative.
c) lithium fluoride forms from its elements:
As elements are combining to form a compound, the randomness decreases and hence is negative.
d) Cesium chloride dissolves in pure water :
As compound is dissociating into ions, the randomness increases and hence is positive.