Which of the following correctly match(es) each property of water with its consequence?Property ConsequenceI Water has a high heat of vaporisation Sweating is an efficient cooling mechanism II Water dissolves many substances Water can become pollutedIII Water has relatively high melting and boiling points At the temperatures experienced on Earth, most water is in the gaseous stateAII onlyBI and II onlyCI and III onlyDI, II and III only
Question
Which of the following correctly match(es) each property of water with its consequence?Property ConsequenceI Water has a high heat of vaporisation Sweating is an efficient cooling mechanism II Water dissolves many substances Water can become pollutedIII Water has relatively high melting and boiling points At the temperatures experienced on Earth, most water is in the gaseous stateAII onlyBI and II onlyCI and III onlyDI, II and III only
Solution
The correct answer is B. I and II only.
Explanation:
I. Water has a high heat of vaporisation: Sweating is an efficient cooling mechanism. This statement is correct. The high heat of vaporisation of water means that a lot of heat is required to change water from a liquid to a gas. When we sweat, the water on our skin absorbs heat from our body to evaporate, which cools us down.
II. Water dissolves many substances: Water can become polluted. This statement is correct. Because water is such a good solvent, it can dissolve a wide range of substances, including pollutants. This means that water can easily become polluted if it comes into contact with harmful substances.
III. Water has relatively high melting and boiling points: At the temperatures experienced on Earth, most water is in the gaseous state. This statement is incorrect. Because water has relatively high melting and boiling points compared to other similar molecules, most water on Earth is actually in the liquid state, not the gaseous state.
Similar Questions
Due to the special properties of water molecules, water can be very useful. Which of the following statements are true for water? (Select all that apply.)
Select all that applyOne unusual characteristic of water is its high specific heat, which means that water Blank______.Multiple select question.boils at a higher temperature than other liquidsabsorbs a great amount of heat before its temperature changeshas the ability to play an important role in moderating global temperaturesretains surface tension better than other liquidschanges temperature slowly
Water has a high hydrating power due to its dielectric constant. It dissolves many ionic compounds. The chemical property of water is:Question 13Select one:A.Dissolving propertyB.Redox reactionC.Amphoteric natureD.Hydrolysis reaction
Which property of water is directly responsible for lowering body heat with sweat?Choose 1 answer:Choose 1 answer:(Choice A) Heat of vaporizationAHeat of vaporization(Choice B) Heat capacityBHeat capacity(Choice C) Surface tensionCSurface tension(Choice D) CohesionDCohesion
Thales is prided as the first Greek philosopher and postulated that water is the unifying principleof the universe. Which of the following is a property of water?A. Water is least dense at 0˚C.B. Linear hydrogen bonds involving water are stronger than covalent bonds.C. Water has a lower heat capacity than methanolD. Hydroxide is the conjugate base of water.E. Water boils at a higher temperature than blood plasma
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.