Answer:
At the cathode in an electrolytic cell, ions in the surrounding solution are reduced into atoms, which precipitate or plate out on to the solid cathode. The anode is where oxidation takes place, and the cathode is where reduction takes place.
Explanation:
Answer:
ΔH = - 44.0kJ
Explanation:
H2O(l)→H2O(g), ΔH =44.0kJ
In the reaction above, liquid water changes to gaseous water. This occurs through a process known as boiling. This process requires heat, hence the ΔH is positive.
If he reaction is reversed, we have;
H2O(g)→H2O(l)
In this reaction, gaseous water changes to liquid water. This process is known as condensation. The water vapor loses heat in this reaction. Hence ΔH would be negative but still have the same value.
Answer:
2NH3+3/2O2=N2+3H2O
Explanation:
balance both sides to have equal elements. LHS:N RHS:N2
H3 H2
O2 O
The cutoff frequency for a certain element is 1.22 x 1015 Hz this is its
work function in eV that is Work done = 5.05 eV.
<h3>What is supposed through a piece function?</h3>
Definition of labor function is the power this is wished for a particle to return back from the indoors of a medium and spoil via the surface —used particularly of the photoelectric and thermionic emission of electrons from metals paintings function.
- Work function = hf
- h= planks constant.
- f= frequency.
- W = 6.626 10^-34 1.22* 10^15.
- W = 8.08 10^-19 / ( 1.6 10^-19)
- W = 5.05 eV.
Read more about work:
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