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HUKUM HESS, DATA ENTALPI DAN ENERGI IKATAN

Authored by Hafidha Kurniati

Chemistry

12th Grade

NGSS covered

HUKUM HESS, DATA ENTALPI DAN ENERGI IKATAN
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Media Image

Dari siklus di samping, perubahan entalpi reaksi : CaO + H2O → Ca(OH)adalah….

a. -50 kJ

b. -44 kJ

c. -266 kJ

d. 55 kJ

e. 60 kJ

2.

MULTIPLE CHOICE QUESTION

1 min • 10 pts

Perhatikan reaksi berikut :

H+ ½ O2 → H2O ΔH = -242 kJ

Energi ikatan H – H dan O = O masing-masing 436 kJ/mol dan 500 kJ/mol, maka energi ikatan rata-rata H – O adalah…Kj

a. 121

b. 222

c. 363

d. 464

e. 589

3.

MULTIPLE CHOICE QUESTION

30 sec • 10 pts

Diketahui :

∆H°f CO = -111 kJ/mol

∆H°f H2 = 0

∆H°f CH3OH = -239 kJ/mol

Berapakah besarnya nilai perubahan entalpi pada reaksi:

CO(g) + 2H2(g) → CH3OH(l)

a. 128 kJ/mol

b. -182 kJ/mol

c. - 128 kJ/mol

d. 182 kJ/mol

e. 111 kJ/mol

4.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Media Image

Hubungan yang benar dari diagram energi tersebut adalah ….

5.

MULTIPLE CHOICE QUESTION

30 sec • 10 pts

Media Image

+94 kJ

+81 kJ

-81 kJ

-94 kJ

-208 kJ

6.

MULTIPLE CHOICE QUESTION

30 sec • 10 pts

– 17 kJ

+ 17 kJ

– 44 kJ

+ 44 kJ

+ 47 kJ  

7.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

– 1.500 kJ

– 1.491 kJ

– 1.400 kJ

+ 1.400 kJ

+ 1.491 kJ

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