Properties of Water- Thermal quiz #2 Flashcards
Properties of Water- Thermal quiz #2
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Which property of water stabilizes our climate?
Water's high specific heat stabilizes our climate by allowing it to resist temperature fluctuations. What property of water helps to moderate Earth's temperature?
Water's high specific heat helps to moderate Earth's temperature by absorbing and releasing heat slowly. What property of water allows it to maintain its temperature?
Water's high specific heat allows it to maintain its temperature by requiring a large amount of energy to change its temperature. Which property of water helps keep body temperature stabilized?
Water's high specific heat helps keep body temperature stabilized by resisting rapid temperature changes. What is specific heat in the context of water?
Specific heat is the amount of energy required to change the temperature of 1 gram of water by 1°C. How does water's high heat of vaporization affect its state change?
Water's high heat of vaporization means it requires a lot of energy to convert from liquid to gas, due to hydrogen bonds. Why does water take a long time to boil?
Water takes a long time to boil because it has a high specific heat, requiring significant energy to increase its temperature. What role do hydrogen bonds play in water's heat of vaporization?
Hydrogen bonds in water require a lot of energy to break, contributing to its high heat of vaporization. How does water's specific heat contribute to homeostasis?
Water's high specific heat helps maintain homeostasis by keeping internal temperatures stable despite external changes. What is the relationship between kinetic energy and temperature?
Temperature is the average kinetic energy of molecules in a sample, indicating their average motion. What is specific heat, and how does it relate to water's ability to resist temperature changes?
Specific heat is the amount of energy required to raise the temperature of 1 gram of a substance by 1°C. Water's high specific heat allows it to resist temperature changes, helping maintain stable conditions in living organisms. How does water's high specific heat contribute to homeostasis in living organisms?
Water's high specific heat helps maintain stable internal temperatures in organisms, allowing them to resist rapid temperature changes in their environment and maintain homeostasis. How do hydrogen bonds affect water's heat of vaporization?
Hydrogen bonds in liquid water require significant energy to break, resulting in water's high heat of vaporization. Why does it take a long time for water to boil or freeze?
Because of water's high specific heat, it requires a lot of energy to change its temperature, so it heats up and cools down slowly. What is kinetic energy, and how does it relate to temperature in water?
Kinetic energy is the energy of motion. In water, temperature measures the average kinetic energy of its molecules. What happens to hydrogen bonds in water when it is heated to the point of vaporization?
The hydrogen bonds between water molecules break, allowing the molecules to escape as gas. How does the volume of water affect its total thermal energy?
A larger volume of water contains more molecules, so it has greater total thermal energy even if its temperature is lower. How does water's high specific heat influence climate and weather patterns?
It moderates climate by absorbing and releasing heat slowly, reducing temperature extremes in the environment. What is the significance of water's high heat of vaporization in the water cycle?
It allows large amounts of solar energy to be absorbed during evaporation, helping regulate Earth's temperature and drive the water cycle. What is the main reason water can absorb or release large amounts of heat with little temperature change?
The presence of hydrogen bonds, which require significant energy to break or form, is the main reason. Why is it important for cells to be composed mostly of water in terms of thermal stability?
Because water's high specific heat helps cells resist temperature fluctuations, maintaining optimal conditions for biochemical reactions.
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