Given H₂(g)+ (1/2)O₂(g) $\rarr$ H₂O(l) $\Delta$ H° = -286 KJ/mol, Determine the Standard Enthalpy Change for Determine

question 67

Multiple Choice

Given H₂(g) + (1/2) O₂(g) $\rarr$ H₂O(l) , $\Delta$ H° = -286 kJ/mol, determine the standard enthalpy change for the reaction
2H₂O(l) $\rarr$ 2H₂(g) + O₂(g) .

• A)(\(\Delta\)H° = -286 kJ/mol)
• B)(\(\Delta\)H° = +286 kJ/mol)
• C)(\(\Delta\)H° = -572 kJ/mol)
• D)(\(\Delta\)H° = +572 kJ/mol)
• E)(\(\Delta\)H° = -143 kJ/mol)

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Definitions:

Stoma

An artificial opening in the abdominal wall; it may be permanent or temporary.

Nocturia

Increased frequency of urination at night that is not a result of increased fluid intake

Diuretic

A medication or substance that promotes the production of urine, used to manage fluid balance and treat conditions like hypertension.

Hypertension

An abnormally high blood pressure: more than 140 mm Hg systolic or 90 mm Hg diastolic.