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Multiple Choice
Which property of water explains why large bodies of water do not quickly fluctuate in temperature?
A
Low density of ice
B
High specific heat capacity
C
Universal solvent ability
D
High surface tension
Verified step by step guidance
1
Understand the concept of specific heat capacity: Specific heat capacity is the amount of heat energy required to raise the temperature of a substance by one degree Celsius. Water has a high specific heat capacity, meaning it can absorb or release a large amount of heat with only a small change in temperature.
Relate this property to large bodies of water: Large bodies of water, such as oceans and lakes, can absorb significant amounts of heat during the day without a rapid increase in temperature. Similarly, they release heat slowly at night, preventing drastic temperature fluctuations.
Compare with other properties of water: While water's low density of ice, universal solvent ability, and high surface tension are important properties, they do not directly explain the temperature stability of large bodies of water. High specific heat capacity is the key property responsible for this phenomenon.
Consider the molecular basis: Water's high specific heat capacity is due to hydrogen bonding between water molecules. These bonds require more energy to break, allowing water to absorb and store heat effectively.
Apply this knowledge to real-world examples: Think about how coastal areas experience milder climates compared to inland areas. This is because large bodies of water regulate temperature changes, demonstrating the importance of water's high specific heat capacity.