Without resorting to tables, state whether S increases, decreases or remains app

Question

Without resorting to tables, state whether S increases, decreases or remains approximately the same for the following reactions/processes, and explain your rationale (check to make sure the equations are balanced, when relevant): (a) H_2O(l) rightarrow H_2O(g) (b) HI_2(g) rightarrow Cl_2 (g) rightarrow 2 Icl (g) (c) HCO_2 (g) rightarrow CO_2 (s) (d) Hraw egg rightarrow hard boiled egg (e) mowing the lawn (f) Ni(s) + 4 CO_2(g) rightarrow Ni(CO)_4 (l) (g) 2 Fe(CO)_5(l) rightarrow Fe_2(CO)_9 (s) + CO(g) (h) P_4(g) + 10 F_2 (g) rightarrow 4 PF_5 (g) (i) BF_3 (g) + NH_3 rightarrow H_3NBF_3 (g) (j) Fe_2O_3(s) + Al(s) rightarrow Fe(s) + Al_2O_3 (s) (k) Calcl_2(s) + 6H_2O(l) rightarrow [Ca(H_2O)_6] Cl_2 (s) (l) C_6H_12(l) + 9O_2(g) rightarrow 6CO_2(g) + 6H_2O(g) (m) H_2O (g) + CO(g) rightarrow H_2(g) + CO_2(g) (n) 2000 ethelyne (g) rightarrow polyethylene plastic (s)

Explanation / Answer

a) increases as liquid converted to gas, randomness of molecule increases

b) remains same because number of moles same on both sides

c) decreases as gas converted to solid, randomness of molecule decreases

d) decreases as liquid converted to solid, randomness of molecule decreases

e) decreases, as randomness of movement of grass decreases

f) decreases as gas converted to liquid, randomness of molecule decreases

g) increases as liquid converted to gas CO, randomness of molecule increases

h) decreases as 11 moles of gas converted to 4 moles of gas

i) decreases as 2 moles of gas converted to 1 moles of gas

j) entropy remains same as number of moles remain same

k) decreases as water molecules gets bound into comples so randomness decreased

l) decreases as 9 moles of gas converted to 12 moles of gas

m) remains same because number of moles same on both sides

n) decreases as gas converted to solid, randomness of molecule decreases

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.