These questions are designed to be considered by groups of...

Name: Problem 1, Chapter 2: Chemical Principle
Uploaded: 2020-08-09T00:04:28-08:00
Duration: 5 min 52 s
Channel: Kendrick Buford
Description: These questions are designed to be considered by groups of students in class. Often these questions work well for introducing a particular topic in class. You may have noticed that when water boils, you can see bubbles that rise to the surface of the water. What is inside these bubbles? Explain. a. air b. hydrogen and oxygen gas c. oxygen gas d. water vapor e. carbon dioxide gas

These questions are designed to be considered by groups of students in class. Often these questions work well for introducing a particular topic in class. You may have noticed that when water boils, you can see bubbles that rise to the surface of the water. What is inside these bubbles? Explain. a. air b. hydrogen and oxygen gas c. oxygen gas d. water vapor e. carbon dioxide gas

These questions are designed to be considered by groups of students in class. Often these questions work well for introducing a particular topic in class.
You may have noticed that when water boils, you can see bubbles that rise to the surface of the water. What is inside these bubbles? Explain.
a. air
b. hydrogen and oxygen gas
c. oxygen gas
d. water vapor
e. carbon dioxide gas

Key Concepts

Boiling Process

The boiling process involves the formation of vapor bubbles within a liquid as it is heated to its boiling point. These bubbles, which are composed of water vapor, rise to the surface and burst, signifying the vigorous vaporization taking place during boiling.

Phase Transition

A phase transition is the process in which matter changes from one state to another, such as from liquid to gas. When water heats up to its boiling point, it undergoes a phase transition where water molecules gain enough energy to break free from the liquid state and become part of the gaseous state.

Vaporization

Vaporization is the process through which a liquid turns into vapor. In boiling water, this process involves water molecules escaping into the gaseous phase, forming water vapor that produces the observable bubbles.

Transcript

00:02 So we're looking at the very beginning of the questions in this chapter and these are some good what i like to call thought questions because the answers can seem to be pretty easy at first glance, but you know i spend some time thinking about it and now we're thinking about boiling water so say you have a pot and those who seem you draw compounds you're gonna learn about my pot drawing is pretty bad too so say you have a pot and it's a lot and it's a lot and it's a lot and it's a lot and it's a lot and it's a lot and it's on a fire and so as the water heats up so water heats up and much it's the beginning of chapter we won't use too many just technical terms so the water heats up basically and this allows it to go through a change of state so right now it's a liquid but as it heats up it's gonna boil it begins to boil and now it's a gas and so you can actually see that steam boiling actually coming from the top of the pot and we've all seen this one that was cooking like boiling the egg any sort of thing that involves boiling water so what if we think is inside these bubbles air hydrogen and oxygen gas only oxygen so air hydrogen oxygen gas oxygen by itself water vapor or and i don't even want to include this one carbon dioxide that one is almost not even work guys including in the emotional choice so we'll start that one.

02:43 Now we know we're boiling h2o because they said we're boiling water.

02:50 So if we're boiling h2o, we're boiling hydrogen, two of them, and one oxygen.

03:02 There's our friend there.

03:04 Now where in this compound is there carbon dioxide, which is co2.

03:12 We're going to rule that one now.

03:13 Just keep going.

03:14 It's just too easy to get rid of.

03:15 Let's look at air.

03:17 Air.

03:19 Well, so, air is a word that you don't want to use in chemistry because it's baked.

03:25 Like, are we talking about all the constituents of air? the nitrogen, all those integral pieces that makes air air? and what are we talking about when we say air? but we can go ahead and through that out because we're boiling water, not air.

03:40 Imagine if you got it so hot that you were physically boiling the air around you guys.

03:44 Now that'd be an interesting day.

03:45 Let's rule that out.

03:47 Next, hydrogen and oxygen gas.

03:51 Now, this one eels pretty close to the right answer because you're boiling h2o, right? and remember, it's asking what's inside these bubbles.

04:03 So, hey, this is a pretty good one...

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