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Thermometer

Theme B - The Particulate Nature Of Matter

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Rocket

Theme A - Space, Time & Motion

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Water Wave

Theme C - Wave Behaviour 

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Magnifying Glass Tilted Right

Theme D - Fields

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Microscope

Theme E - Nuclear & Quantum Physics

<ul>
	<li>What is it? When changes happen at a constant pressure, we call it an &quot;Isobaric&quot; change.</li>
	<li>Fun Fact! The term &#39;Isobaric&#39; hails from Ancient Greece!
	<ul>
		<li>Iso = same 🔄</li>
		<li>Baros = weight ⚖️</li>
		<li>Together, they mean changes happening under the same weight (or pressure)! Pretty cool, huh?</li>
	</ul>
	</li>
</ul>

<ul>
	<li>Imagine a graph (like the one in Figure 7(a)) where Pressure (P) is on the Y-axis and Volume (V) is on the X-axis.</li>
	<li>An Isobaric change will look like a horizontal line, just chilling there, parallel to the Volume axis.</li>
	<li>Real-world Example: Think of it like a train moving on a straight, flat track. No matter how far it goes, its altitude (or in our case, pressure) remains the same!</li>
</ul>

Because the line is straight, it&rsquo;s pretty straightforward (pun intended!) to calculate the work done during the change.

<ul>
	<li>Formula Alert! Q = &Delta;U + P&Delta;V
	<ul>
		<li>Q = Heat transferred</li>
		<li>&Delta;U = Change in internal energy</li>
		<li>P = Constant pressure</li>
		<li>&Delta;V = Change in volume</li>
	</ul>
	</li>
	<li>Real-world Example: Imagine you&rsquo;re blowing up a balloon. As you blow air into it (increasing its volume), it gets warm (because of the heat you&#39;re transferring). So, the work you&#39;re doing (the effort in blowing) is linked to the heat and the change in the balloon&#39;s volume.</li>
</ul>

<ul>
	<li>Super Important Equation: TV​ = constant
	<ul>
		<li>V = Volume of the gas</li>
		<li>T = Temperature in Kelvin</li>
	</ul>
	</li>
	<li>This equation tells us that if the temperature goes up, the volume will too, and vice versa, but their ratio will always remain the same.</li>
	<li>Real-world Example: When you leave a sealed packet of chips in a car on a sunny day, the air inside expands (because it gets warmer) making the packet puff up. But if you were to measure, the ratio of the volume to the temperature inside the packet would stay the same!</li>
</ul>

<ul>
	<li>Isobaric changes happen at constant pressure.</li>
	<li>They&#39;re easily visualized on a P-V diagram as a line parallel to the V-axis.</li>
	<li>The First Law of Thermodynamics plays a key role.</li>
	<li>The gas equation in this scenario links volume and temperature.</li>
</ul>

Happy Studying! 🎉📚

Theme B - The Particulate Nature Of Matter

Isobaric Change: Delve Into Thermodynamics & Gas Laws

Table of content

Isobaric change - a quick intro 🎈

Picturing it on a P-V diagram 📈

Calculating work in isobaric change 🧮

Unlock the Full Content!

Theme B - The Particulate Nature Of Matter

Isobaric Change: Delve Into Thermodynamics & Gas Laws

Table of content

Isobaric change - a quick intro 🎈

Picturing it on a P-V diagram 📈

Calculating work in isobaric change 🧮

Unlock the Full Content!