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A sample of water shows the following behavior as it is heated at a constant rate:If twice the mass of water has the same amount of heat transferred to it, which of the following graphs best describes the temperature variation? Note that the scales for all the graphs are the same.
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Intermolecular Forces and Liquids and Solids
University of Central Florida
In physics, a solid is a state of matter characterized by rigidity and resistance to changes of shape or volume. Solid objects have a definite volume, they resist forces (such as pressure, tension and shear) in all directions, and they have a shape that does not change smoothly with time. The branch of physics that studies solids is called solid-state physics. The physical properties of solids are highly related to their chemical composition and structure. For example, the melting point of ice is significantly lowered if its crystal structure is disrupted.
A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. As such, a liquid is one of the four fundamental states of matter (the others being solid, gas and plasma). A liquid is made up of tiny vibrating particles of matter, such as atoms, held together by intermolecular bonds. Water is, by far, the most common liquid on Earth. Like a gas, a liquid is able to flow and take the shape of a container. Most liquids resist compression, although others can be compressed. Unlike a gas, a liquid does not disperse to fill every space of a container, and maintains a fairly constant density. A distinctive property of the liquid state is surface tension, leading to wetting phenomena.
A sample of water shows th…
Which of the following gra…
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Which graph represents the…
Refer to the plot of tempe…
Two kilograms of water are…
which of the folowing grap…
Draw a heating curve for a…
first off, let's take a look at what our graph is doing. So our graph looks little something like this, where we have two separate changes in temperature or energy. Rather, and each of them takes the exact same amount of time and is an equivalent change in energy that's taking place here. So if we double the amount of water that we're working with, what we're gonna find is that this initial change here is going to take twice as long. So instead of looking like it did in the first place, it's gonna take us exactly double the amount of time that change to occur. Now, something else that's important to note is that this amount of energy that we've put in here is going to be twice as much because we've raised double the amount that same degree and this change that we've done here, plus this change is going to equal this exact same amount that we've done here. So, in fact, it turns out that in doing this little change, we've already used up all the energy that we've had available. So as a result, we see that we're going to have a plateau start right here as a result. And that's gonna be the end of anything taking place. And this graph here corresponds to D. So there is the answer.
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