Charles's Starter
🧪 INSTRUCTIONS:
1) Complete the Charles's Law Starter (below)
2) Screenshot and Keep the Tab Open when finish.
3) Then work on the Lab Reports in Google Classroom
4) See Code: CharlesNotes or PercentError for extra help.
5) Do not right click, use Ctrl, or Alt keys combinations
1) Complete the Charles's Law Starter (below)
2) Screenshot and Keep the Tab Open when finish.
3) Then work on the Lab Reports in Google Classroom
4) See Code: CharlesNotes or PercentError for extra help.
5) Do not right click, use Ctrl, or Alt keys combinations
Charles's Starter 3.0
Charlesâs Law: V1/T1 = V2/T2 (Pressure stays constant)
1) Formula (The Prediction)
Use Charlesâs Law when pressure stays constant:
V1 / T1 = V2 / T2
- To solve for a Theoretical V2: V2 = V1 Ă (T2 / T1)
2) Temperature Rule (Always Kelvin)
Even if the lab gives temperatures in °C, you must convert:
K = °C + 273
- Convert T1 and T2 to Kelvin before plugging into the formula.
3) Theoretical vs Experimental + Percent Error (Teachable Example)
- Theoretical V2 = what you predict using Charlesâs Law.
- Experimental V2 = what you measured in the lab (from the chart).
- Difference = |V2(theory) â V2(exp)|
- Percent Error = (|exp â theory| á theory) Ă 100
Example Data
V1 = 355 mL
T1 = 25°C
T2 = 75°C
V2(exp) = 415 mL
- Step 1 Convert to Kelvin: T1 = 25+273 = 298 K, T2 = 75+273 = 348 K
- Step 2 Theoretical V2: V2 = 355 Ă (348/298) â 415 mL
- Step 3 Difference: |415 â 415| = 0 mL
- Step 4 Percent Error: (0 á 415) à 100 = 0%
2 questions total. Each question has 3 answer boxes: (1) Theoretical V2 (mL), (2) Difference (mL), and (3) Percent Error (%). You earn credit for each box that is correct. Score appears only at the end.