
Hukum Hess
Authored by PKB_021_HALIMAH KURNIA SAFITRI
Chemistry
11th Grade
Used 2+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
Hukum Hess menyatakan bahwa perubahan entalpi suatu reaksi hanya bergantung pada keadaan awal dan akhir reaksi, tidak bergantung pada jalur reaksi
Benar
Salah
2.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
Apa salah satu syarat dari penerapan Hukum Hess?
Semua reaksi harus bersifat eksotermis
Reaksinya harus menghasilkan energi bebas yang sama
Reaksi harus berjalan pada suhu dan tekanan yang konstan
Reaksi harus berlangsung secara langsung
Reaksi harus memiliki laju reaksi yang tinggi
3.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
Jika reaksi dibalik, maka nilai perubahan entalpi (∆H) akan tetap sama dan tidak berubah tanda
Benar
Salah
4.
FILL IN THE BLANK QUESTION
1 min • 20 pts
Diketahui reaksi:
C(s) + O₂(g) → CO₂(g), ΔH = -393 kJ
H₂(g) + ½O₂(g) → H₂O(l), ΔH = -286 kJ
CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(l), ΔH = -890 kJ
Hitunglah ΔH untuk reaksi C(s) + 2H₂(g) → CH₄(g)
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Diketahui:
2H₂(g) + O₂(g) → 2H₂O(l), ΔH = -572 kJ
2H₂(g) + O₂(g) → 2H₂O(g), ΔH = -484 kJ
Hitunglah ΔH untuk:
2H₂O(l) → 2H₂O(g)
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