REACTION POWERED CAR

“THE BOSS”

By: Blake Inglin, Rachel Dana, and Priya Gupta

REACTION CHEMISTRY Our reaction involved Hydrochloric Acid and

Sodium Bicarbonate. HCl(aq) + NaHCO3(aq) H2O(l) + CO2(g)

+NaCl(aq) Calculations were done to find how many

milliliters of HCl we could use without going over 5 atm.

12 mL x 12.1 moles HCl = .1452 mol HCl = .1452 mol CO2 1000 mL HCl PV=nRT P=nRT/ V (.1452 mol)(.0821

Latm/molK)(293K)/(.700 L) P = 4.9898 atm This was our theoretical prediction of the

pressure in the bottle using 12 mL of HCl.

CAR DESIGN

Initial Car Design: Did not move. Base for Final Car

Design

Second Car Design: Too heavy.

Before the Race

“The Boss”

TESTING RESULTS: DATA AND PLOTS

Trial # Grams of Baking Soda Volume of HCl (mL) Volume of Water (mL)

Distance (feet)

1 13.130 g 12 5 14

2 13.260 g 12 10 20

3 13.364 g 12 12 12

4 13.015 g 12 8 5

5 13.015 g 12 10 27

6 13.044 g 12 10 26

0

5

10

15

20

25

30

14

20

12

5

27 26

Test Run Distances

Trial Numbers

Distance in Fett

CONCLUSIONS Our car went to finals with a distance of 29

inches away from the goal of 25 feet. In finals we finished with a distance of 2

inches away from 25 feet. If we were to redesign our car, we would

make our car more stable by creating a stronger support for the bottle and use bigger wheels.

We would also make a more durable to withstand pressure and crashes.

Our car was extremely inconsistent during the competition and we expect that making these changes would increase consistency.

GO BEAVERS!!