Thermal Decomposition of Mercury(II) Oxide

2HgO → 2Hg + O2

개요

Mercury(II) oxide decomposes when heated to about 500 C into mercury metal and oxygen gas. This reaction is historically significant as it was used by Joseph Priestley in 1774 to discover oxygen. The red powder turns into shiny mercury droplets when heated.

참여 물질

역할 물질 계수 상태
생성물 Oxygen O 1 (g)
생성물 Mercury Hg 2 (l)

일상 속 예시

This reaction is primarily of historical significance, demonstrating a fundamental chemical principle in the discovery of oxygen.

산업적 중요성

산업적으로는 더 이상 사용되지 않지만, 이 반응은 현대 화학의 발전과 원소 및 화합물에 대한 우리의 이해에 결정적이었습니다.

성질

유형
Decomposition
가역 반응
예
에너지
흡열
ΔH
181.6 kJ/mol

관련 반응

Decomposition of Ammonium Nitrate Decomposition of Calcium Hypochlorite Decomposition of Carbonic Acid Decomposition of Iron(II,III) Oxide (Direct Reduction) Decomposition of Nitrous Oxide (Laughing Gas) Decomposition of Barium Peroxide Decomposition of Sodium Bicarbonate Decomposition of Water (Electrolysis) Thermal Decomposition of Copper(II) Carbonate Cracking of Octane (Thermal Cracking)

Frequently Asked Questions

What is the equation for Thermal Decomposition of Mercury(II) Oxide?
The balanced equation is: 2HgO → 2Hg + O₂.
What type of reaction is Thermal Decomposition of Mercury(II) Oxide?
Thermal Decomposition of Mercury(II) Oxide is a decomposition reaction. It is reversible under certain conditions.
Is Thermal Decomposition of Mercury(II) Oxide exothermic or endothermic?
Thermal Decomposition of Mercury(II) Oxide is endothermic (absorbs energy). The enthalpy change (ΔH) is 181.6 kJ/mol.