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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

🌟 Pop Quiz: What happens when you&rsquo;re in a jam-packed elevator and nobody can move? That&#39;s right! It&rsquo;s like an isovolumetric change in gases - no room to change the volume! 😄

<ul>
	<li>Definition: A situation where the volume of the gas remains CONSTANT.</li>
	<li>Equation of State: P &times; T=constant (P for Pressure and T for Temperature).</li>
	<li>In plain English: When volume doesn&#39;t change, as the temperature goes up, pressure goes up too, and vice versa.</li>
</ul>

<ul>
	<li>The P-V diagram is a cool way to represent the relationship between pressure (P) and volume (V).</li>
	<li>In Figure 9, you&rsquo;d see a straight line parallel to the pressure axis.</li>
	<li>This line is like a car in a traffic jam. No matter how much it wants to move forward, it just can&#39;t because of the traffic. Here, our &quot;traffic&quot; is the constant volume!</li>
	<li>The change in volume, &Delta;V, is ZERO. Hence, &Delta;V=0. Just like our elevator example!</li>
</ul>

🚀 Real-World Example: Imagine you&rsquo;ve got a sealed, unbreakable bottle filled with air. If you heat it, the air inside wants to expand. But, it can&#39;t because of the bottle walls! The pressure inside the bottle will increase, but the volume remains the same. That&#39;s an isovolumetric change.

<ul>
	<li>First Law Equation: Q = &Delta;U + P&Delta;V</li>
	<li>Q = Heat energy transferred into the system.</li>
	<li>&Delta;U = Change in internal energy of the system.</li>
	<li>P&Delta;V = Work done by the system on its surroundings.</li>
</ul>

<ol>
	<li>
	For our isovolumetric situation, &Delta;V = 0, so, P&Delta;V=P &times; 0 = 0.
	</li>
	<li>
	Plugging this in, our equation becomes: &Delta;Q = &Delta;U.

	<ul>
		<li>Translation: All the heat energy you transfer into the gas ends up changing its internal energy!</li>
	</ul>
	</li>
	<li>
	Flip Side: If you see the equation as Q = &minus; &Delta;U, it&rsquo;s like pulling the plug from a bathtub.

	<ul>
		<li>All the energy from the gas gets drained out, transferring it from the gas&#39;s internal energy store. Imagine the gas feeling a cold chill! ❄️</li>
	</ul>
	</li>
</ol>

🎉 Summary: Isovolumetric changes are like trying to dance in a packed elevator. You just can&#39;t! Similarly, the gas can&#39;t change its volume but can change its pressure and internal energy based on the heat supplied or removed. Remember our bottle example next time you study this, and it&rsquo;ll be a piece of cake! 🍰

&nbsp;

Happy Studying! Remember, Physics is everywhere - even in elevators and traffic jams! 😄📚🔬

Isovolumetric Change: Understanding Constant Gas Volume

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Higher Level

Physics HL

Theme B - The Particulate Nature Of Matter

Isovolumetric Change: Understanding Constant Gas Volume

Table of content

Key concept - isovolumetric change 📌

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Theme B - The Particulate Nature Of Matter

Isovolumetric Change: Understanding Constant Gas Volume

Table of content

Key concept - isovolumetric change 📌

Unlock the Full Content!