Lab 16: Chinook Heating & Cooling Curve Lab

Part 1: Heating Curve Explorer

Substance: Mode:

Time slider (0–20 min): 0 min

Part 2: Particle View

Solid

Solid phase: Particles are locked in a rigid lattice, vibrating in place. Strong IMFs hold them together. Temperature = kinetic energy of vibration only.

Part 3: Calculation Challenges

Part 4: "Where Does the Heat Go?" — Flat Regions

During phase changes (flat regions of the heating curve), temperature does NOT change even though heat is being added. Where does the energy go?

Part 5: Ice & Chinook — Case Connection

Case Context: The Alpine Ridge rink sat at 0°C all night while the chinook blew — pinned on the flat "melting" plateau of its heating curve. Every gram of ice that melted silently absorbed 334 J without any temperature change. That hidden (latent) energy is what the audit must account for.

Calculate: How much energy (in kJ) did the chinook deliver to melt a 650 g slab of rink ice at 0°C?
(ΔH_fus of ice = 334 J/g; the ice is already at 0°C)

Your answer (kJ):

Part 6: Analysis Questions

Lab Report

Observations

CER

Claim

Evidence

Reasoning