Answer:
at constant pressure the enthalpy change of a process equal the amount of heat transferred into or out of the system
Explanation:
∆H=∆(E+PV)
=∆E+P∆V
∆E=qp+w
w=P∆V
∆H=∆E+P
∆V=(qp+w)-w=qp
when qp= heat at constant pressure
good luck
Answer:
from nitrogen fixation in plants, lightning and bacteria
Explanation:
Answer is: 3,2 · 10¹¹ t of quicklime.Â
Chemical reaction: COâ‚‚ + CaO → CaCOâ‚.
m(CO₂) = 2184,82·10¹² · 115 = 2,51 · 10¹ⷠg.
n(COâ‚‚) = m(COâ‚‚)Â Ă· M(COâ‚‚)
n(CO₂) = 2,51 · 10¹ⷠg ÷ 44 g/mol = 5,7 · 10¹ⵠmol.
from reaction n(COâ‚‚) : n(CaO) = 1 : 1.
n(CaO) = 5,7· 10¹ⵠmol.
m(CaO) = 5,7· 10¹ⵠmol · 56 g/mol = 3,2 · 10¹ⷠg = 3,2 ·
10¹¹ t.
n - amount of substance
1) The particles move faster
2) Heat energy also makes it hotter
Answer/Explanation:
No compounds must be made up of two or more elements. otherwise it wouldn't be a compound. There must be some type of combination or it isn't a compound.