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3 cards from this section. Quick, good the night before a test.
What unit is entropy measured in?
Think about how we measure heat and temperature in physics.
Does solid, liquid, or gas have the highest entropy?
Consider the motion and arrangement of particles in each state.
What does a higher entropy value indicate?
Think about energy and particle movement.
True or False: Entropy measures the energy of a system.
Consider what we learned about entropy and energy.
Imagine a closed container holds 2 moles of gas A and 3 moles of gas B at 298 K. If the mixture decreases in temperature to 273 K without any changes in pressure or volume, discuss the expected change in entropy and why.
Relate the effect of temperature on particle movement and arrangement.
Given standard entropies for X = 200 J K⁻¹ mol⁻¹ and Y = 300 J K⁻¹ mol⁻¹, and the reaction X + Y → Z with standard entropy S°(Z) = 600 J K⁻¹ mol⁻¹. Calculate the entropy change for this reaction.
Recall the entropy change formula and substitute correctly.
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