An ideal gas is cooled at constant pressure, option A. A. ΔH is less than (more negative) Δ E of the system.
∆H is the exchange in enthalpy from reactants to products A ΔHº charge represents an addition of electricity from the reaction and from the surroundings, resulting in an endothermic response. A horrible cost for ΔHº represents the removal of power from the reaction and into the surroundings and so the reaction is exothermic.
The enthalpy of a system can not be measured right away because of the fact the inner energy consists of additives that are unknown, now not effects available, or aren't of interest in thermodynamics.
Hence, the answer is option A.
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A solid yields a mixture of gases in an exothermic reaction that takes place in a container of variable volume.
A. ΔH is less than (more negative) Δ E of the system.
B. ΔH is greater than ΔE of the system.
C. ΔH is equal to ΔE of the system.
D. can't be determined without more information
Answer: mass m = M·c·V
Explanation: M(CaCl2) = 110.98 g/mol, c= 0.15 mol/l,
n=m/M= cV, volume of Solution is not mentioned
I believe it's Ammonium chloride
Answer:
Explanation:
as transformações parecem invisíveis por causa do nível de organização da vida. A célula é a unidade básica da vida, a célula é invisível e todas as mudanças são resultado da formação de novas células no ser vivo.
12. V.
13. W.
14. A.
15. R.
16. N.
17. X/Y
18.X/Y
19. M.
20. O.
21. W.
22. I.
23. U.
24. T.
25. P.
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I believe that is all right
Sorry if not, Gl!
By the way, the ones that are “X/Y”
are the same answer so just put either X or Y.