Bio 151 HW1

Bio 151 HW1 - Krystal Fillingame Bio 151, dis section 706...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Krystal Fillingame Bio 151, dis section 706 Discussion Homework 1. a) D. Water has a high heat of vaporization. In the text they introduce this idea that it take a large amount of heat or energy to be taken from the water in order for it to freeze. Another reason to why the lakes don’t completely freeze is due to the high amount of solutes present which also will prevent freezing. Many of the animals that live in these waters have adapted as well, they produce anti-freeze molecules. b) B. These substances are electrically charged ions and therefore have an attraction to water molecules because the water molecules are polar. Once the ionic bond is broken, the water molecules surround the ion which keeps them dissolved. c) A. Water is a very sticky kind of molecule and therefore will try to stick to itself as well as to other surfaces. It forms hydrogen bonds causing the meniscus in the cylinder. d) D. It takes quite a bit of energy for water to evaporate. It is a method for
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/27/2008 for the course BIO 151 taught by Professor Grinblat during the Spring '08 term at Wisconsin.

Ask a homework question - tutors are online