Thermodynamics

Fundamental principles governing energy, heat, and work.

Irene, Joy, Paige

Introduction

• Study of energy, heat, and how systems change
• Explains why processes happen (or don’t happen)
• Focus: energy flow + system behavior
• Key idea: systems move toward more stable states
• In dance: movement = energy transfer + transformation

​

Gibbs Free Energy

Gibbs free energy = usable energy available to do work

• Determines whether a process will occur spontaneously
• Combines effects of:
• Energy change (enthalpy)
• Disorder (entropy)
• Key idea:
• Systems favor states with lower free energy
• Used to predict:
• Direction of reactions
• Stability of a system

Gibbs Free Energy Equation

ΔG=ΔH−TΔS��ΔG = Gibbs free energy (overall favorability)

ΔH = enthalpy (energy/heat change)

ΔS = entropy (disorder/randomness)

T = temperature (energy level of system)

Determines direction of a process

​

Gibbs Free Energy in Dance

ΔG = whether movement “wants” to happen

Combines:

• Energy (effort, intensity)
• Freedom (structure vs chaos)

Dance interpretation:

• Natural flow vs forced movement

Key idea:��� Movement either flows, resists, or balances

​

ΔG Cases

ΔG < 0 (Spontaneous)

• Movement flows naturally
• Smooth transitions
• No visible resistance

ΔG > 0 (Non-spontaneous)

• Requires effort/force
• Hesitation, struggle
• Delayed or resisted motion

ΔG = 0 (Equilibrium)

• Balanced movement
• Continuous but no net change
• Opposing motions cancel out

Choreo Description

dancer formation

Section 1: ordered system (low entropy and ΔG =0) - clean lines, synchronized movement, controlled and precise, strong structure

​

Section 2: add heat (increase T, change in both enthalpy and favorability) - tempo increases, energy builds, movement loosens

ΔG=ΔH−TΔS

Choreo

Section 3: entropy increasing and explosion - formation breaks (formation change), dancers spread out, individual freestyle elements

​

Section 4: ending (based on G>0 or G<0)

Option A: ΔG < 0 - Smooth resolution, Natural flow, Movement feels complete

Option B: ΔG > 0 - Collapse or tension, Unresolved ending, Visible struggle remains

ΔG=ΔH−TΔS

Our choreo demo

Table Summary

THANKS!

Does anyone have any questions?

addyouremail@freepik.com

+91 620 421 838

yourcompany.com

Please keep this slide for attribution

CREDITS: This presentation template was created by Slidesgo, including icons, infographics & images by Freepik