Essays on Styrofoam

Abstract

In this experiment, two calorimeters were designed and assembled. One was made using Styrofoam cups and another one using glass and foil. The calorimeters were studied for their performance in keeping the heat of the system. They were studied by measuring the heat loss of hot water over time. The heat lost in each calorimeter over 30 minutes was calculated. The calorimeter made of glass worked better and less heat was lost in it. The assembled calorimeters were used to find out the heat of reaction between NaOH and HCl per one mole of water. This value was found ...

Abstract

The purpose of this experiment was to determine the specific heat capacity of unknown substance and use the quantity to identify the substance. The specific heat capacities of the metals were determined to be 0.890 Jg-1K-1 and 0.361 Jg-1K-1. The metals were identified as aluminum and copper respectively. The percentage uncertainty in the determination of specific heat capacities of aluminum and copper were found to be 0.78% and 6.23% respectively. These errors were attributed to loss of heat in the atmosphere.

Introduction and Theory

The amount of heat absorbed or released by a substance is proportional to its mass and temperature differences (Arfken ...

Section SLN:

TA’s name: I. Objectives - Measure the motion of a Simple Pendulum using a motion detector and record position v/s time by computer. - Investigate how the period varies with the amplitude. - Analyze the motion to determine damping constant and quality factor. II. Data

Undamped oscillations – tennis ball

Slope of T2 vs. L plot = 4.923 +/- 0.2372 s2/m

Make a bar graph in GA to observe the relationship between period and amplitude.

Damped oscillations – Styrofoam ball III. Data Analysis

Period of oscillations as a function of the pendulum length

- Based on the slope of T2 vs. L plot the experimental gravitational acceleration was calculated as follows: The slope of the graph is calculated to be 4.923.

Now, we know that,

Slope = 42/g

Therefore,

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