It depends on the process.
Like for example if the process is isothermal(temperature is constant), you can use,
PV = constant or P1V1 = P2V2 where P1V1 are initial conditions and P2V2 are final.
For adiabatic process,
PV^gamma = constant or P1V1 ^gamma = P2V2 ^gamma.
where gamma = Cp
------
Cv
Cp = specific heat at constant pressure and Cv = specific at constant volume.
Value of Gamma will be given in question.
Hope this helps!
Answer:
Explanation:
The name of the compound is:
Al(NO₃)₃ is Aluminium nitrate
Aluminium nitrate is an ionic compound formed when Al loses 3 valence electrons to the nitrate.
Formula of cation: A cation is a positive charged specie
Al³⁺
Formula of anion: Anion is a negatively charged specie;
NO₃⁻
Answer:
C.
Explanation:
A. C - 6 electrons - 1s2 2s2 2p2
B. O - 8 electrons - 1s2 2s2 2p4
C. N - 7 electrons - 1s2 2s2 2p3
D. Be - 4 electrons - 1s2 2s2
Answer:
Molecular compound and ionic compound
Explanation:
Molecular compounds include a prefix on the first and second elements and a suffix on the second element, whereas Ionic compounds do not have prefixes and only include a suffix on the second element.
We have that the total enthalpy of the reaction changes with the quantity of the reactants and it is proportional to them. Also, the reverse of a reaction has the opposite enthalpy. Hence, since we need to multiply by 2, the reactants are double and thus the value of the enthalpy is 2 as big. Also, since we are using the inverse reaction, we must also invert the sign. Thus, for this reaction we must use the value H=572 kJ.
