Why Does Water Not Freeze at 0°C When Either Ions

question 117

Multiple Choice

Why does water not freeze at 0°C when either ions or molecules other than O are present?

• A)Molecules or ions dissolved in the water give the water molecules something else to easily bond with, thus allowing the solution to freeze well above 0°C.
• B)Molecules or ions dissolved in the water increase the number of water molecules at the solid-liquid interface, thus allowing for the rate of ice formation to increase at a temperature above 0°C.
• C)When molecules or ions are dissolved in the water, these solute molecules both take up space and inhibit the formation of the solid phase, thus lowering the freezing point temperature below 0°C.
• D)Molecules or ions dissolved in the water will sometimes raise the freezing point above 0°C and other times lower it below 0°C depending on the nature of these solute particles.

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Definitions:

Fiscal Policy

The use of government spending and taxation to influence the economy, including policies aimed at reducing unemployment, controlling inflation, and fostering economic growth.

Election Year

A year in which a formal decision-making process is conducted through which citizens vote to choose public officials or to decide on public policy issues.

Government Purchases

Government purchases comprise spending by government bodies on goods and services that contribute directly to the economy's aggregate demand.

Stagflation

A period of slow economic growth and high unemployment while prices continue to rise.