Latihan soal Perubahan Entalpi Reaksi

Latihan soal Perubahan Entalpi Reaksi

11th Grade

15 Qs

quiz-placeholder

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Latihan soal Perubahan Entalpi Reaksi

Latihan soal Perubahan Entalpi Reaksi

Assessment

Quiz

Chemistry

11th Grade

Medium

Created by

Agustinawati Agustinawati

Used 197+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Diketahui:
CS2(l)  + 3O2 (g) \rightarrow   CO2(g) + 2SO2(g)        ∆H= -1077 kJ
H2(g) + O2 (g)        \rightarrow  H2O2(l)                      ∆H = -188 kJ
H2(g) + ½ O2 (g)  \rightarrow  H2O(l)                          ∆H = -286 kJ
Perubahan entalpi untuk reaksi
CS2(l) + 6H2O2(l)à CO2(g) + 6H2O(l) + 2SO2(g) adalah ........
 

+1.665 kJ

-1.665 kJ

+ 603 kJ

- 603 kJ

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

1. Gunakan hukum Hess untuk menentukan ΔH reaksi:

C(s) + 12O2(g) + 2H2(g)→ CH3OH(g)

Diketahui:

C(s) + 12 O2(g)→ CO(g) ΔH°1 = –111 kJ

CO(g) + 2H2(g)→ CH3OH(l) ΔH°2 = –128 kJ

-132 kJ

-239 kJ

-264 kJ

-458 kJ

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Diketahui ΔH°f: CH4(g) =–75 kJ mol–1; CO2(g) =–394kJ mol–1; H2O(􀁁) =–286 kJ mol–1; C2H4(g) = 52 kJ mol–1;SO2(g) =–297 kJ mol–1; H2S(g) = 21 kJ mol–1.

Hitung ∆H° untuk reaksi berikut!

CH4(g) + 2O2(g) →CO2(g) + 2H2O(l)

-1041 kJ

-1542 kJ

-2432 kJ

-2643 kJ

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Di Ketahui Persamaan Reaksi :

 NO(g)  12N2(g) + 12O2(g)  ΔH = 90 KjNO_{\left(g\right)}\ \rightarrow\ \frac{1}{2}N_{2\left(g\right)}\ +\ \frac{1}{2}O_{2\left(g\right)}\ \ \Delta H\ =\ -90\ Kj  
maka harga  Δ\Delta  H untuk reaksi
 2N2(g) + 2O2(g)  4NO(g) adalah....2N_{2\left(g\right)}\ +\ 2O_{2\left(g\right)}\ \rightarrow\ 4NO_{\left(g\right)}\ adalah....  

+ 45

- 45

+ 180

- 180

+ 360

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Berdasarkan diagram diatas, hubungan ∆H1, ∆H2, ∆H3 yang benar adalah . . . . .

∆H2 = ∆H1 - ∆H3

∆H2 = ∆H1 + ∆H3

∆H3 = ∆H1 - ∆H2

∆H3 = ∆H1 + ∆H2

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Dari diagram di atas, maka nilai x ialah...

a.-237 kj

b +327 kj

c.- 876 kj

d.- 564 kj

e.-593 kj

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

+94 kJ

+81 kJ

-81 kJ

-94 kJ

-208 kJ

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