A 100ML Sample of 0 $\rarr$ NH₄Cl(aq)
the Temperature Increase Is 2

question 40

Multiple Choice

A 100.mL sample of 0.200 M aqueous hydrochloric acid is added to 100.mL of 0.200 M aqueous ammonia in a calorimeter whose heat capacity (excluding any water) is 480.J/K. The following reaction occurs when the two solutions are mixed. HCl(aq) + NH₃(aq) $\rarr$ NH₄Cl(aq)
The temperature increase is 2.34°C. Calculate $\Delta$ H per mole of HCl and NH₃ reacted.

• A)154 kJ/mol
• B)1.96 kJ/mol
• C)485 kJ/mol
• D)-1.96 kJ/mol
• E)-154 kJ/mol

---

Definitions:

Japan

An island nation in East Asia, known for its rich culture, technological advancements, and significant economic power.

Equilibrium GDP

The level of GDP (Gross Domestic Product) at which total demand (aggregate demand) and total supply (aggregate supply) in the economy are equal, leading to an economic equilibrium.

Full Employment GDP

The output level of goods and services at which the economy's labor force is fully employed, indicating an optimal level of production without excessive inflation.

Inflationary Gap

A situation where the total demand in an economy exceeds the total supply, leading to an increase in the general price level or inflation.