The Dissolution of Barium Hydroxide in Water Is an Exothermic

question 17

Multiple Choice

The dissolution of barium hydroxide in water is an exothermic process. Which statement is correct?

• A) The enthalpy of solid barium hydroxide plus pure water is less than that of the solution, at the same temperature.
• B) The enthalpy of solid barium hydroxide plus pure water is greater than that of the solution, at the same temperature.
• C) The enthalpy of solid barium hydroxide plus pure water is the same as that of the solution, at the same temperature.
• D) The temperature of the solution is lower than of the barium hydroxide and water before mixing.
• E) When barium hydroxide dissolves in water, the system does work on the surroundings.

---

Definitions:

Globalization

is the process by which businesses or other organizations develop international influence or start operating on an international scale, leading to increased interconnectedness and interdependence.

Philip Morris

A leading international tobacco company known for manufacturing and selling cigarettes and other nicotine-containing products.

Politics

The activities, actions, and policies used to gain and hold power in government or to influence government.

Economics

A social science focused on the production, distribution, and consumption of goods and services, and the analysis of the choices made by individuals and groups.