Essays on Calorimeters

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 ...

1.0 Lab 1: Heating Value Measurements: Solid and Liquid Fuels with a Bomb Calorimeter 1.1 Introduction Measurements of heating values can be derived for both solid and liquid combustible fuels using an Oxygen Bomb Calorimeter. The calorimeter measures heat. Heat is not the same thing as temperature. The heat of combustion is called the calorific value. The calorific value is “:the number of heat units liberated by a unit mass of a sample when burned with oxygen in an enclosure of constant volume” (Introduction 2007). The experiment uses the 6100 Bomb Calorimeter. The definition of calorific value in a bomb calorimeter ...

Funding is requested from the National Science Foundation in order to carry out proposed research based on the calorimetric study of enthalpy, Gibb’s energy, and entropy. The technique of calorimetric experimentation has changed a great deal from the early 1960s when studies of the heat ionization of water were conducted. The first adiabatic bomb calorimeters were very simple and controlling the difference in temperature between the inside and outside jackets was hard to control. The difference in temperature needs to be as small as possible, close to an infinitesimal amount. Technology has developed to sophisticated levels. The automatic capabilities ...