Hukum Hess

Hukum Hess

7 Qs

quiz-placeholder

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Hukum Hess

Hukum Hess

Assessment

Quiz

Chemistry

Easy

Created by

Yan Yan

Used 1+ times

FREE Resource

7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

Dari siklus diatas perubahan entalpi reaksi :

CaO + H2O → Ca (OH)2 adalah....

-266 kJ

+266 kJ

+1706 kJ

-1706 kJ

-520 kJ

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

Perhatikan diagram entalpi dari reaksi di samping.

Berdasarkan data-data pada diagram

tersebut, harga ΔH3 adalah...

-41 kJ

+41 kJ

+242 kJ

+525 kJ

-525 kJ

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

+1.665 kJ

-1.665 kJ

+ 603 kJ

- 603 kJ

4.

MULTIPLE CHOICE QUESTION

5 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

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

-110,5 Kj

-221 Kj

-55,25 Kj

+55,25 Kj

+110,5 Kj

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

+ 45

- 45

+ 180

- 180

+ 360

7.

MULTIPLE CHOICE QUESTION

5 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