Technical data

Temperature of mixtures and heat capacity of the calorimeter with Cobra SMARTsense

Article no: P1044169

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

Principle

Quantities of heat are distributed in such a way that finally all parts in contact with each other have the same temperature. If the heat capacities and initial temperatures are known, the final temperature can be predicted. Conversely, the heat capacity can be deduced from the end temperature if the initial temperatures are known.

Benefits

Particularly understandable and didactically prepared description of the experiment (relevance to everyday life etc.) including protocol questions
Future-oriented teaching: Integration into digital science lessons with tablets
Increased motivation of students by using the intuitive measureAPP
Increase of media competence

Tasks

The students heat different amounts of water with the butane burner and determine their temperature. They then mix them to a known amount of water in the calorimeter, the temperature of which has already been determined.

Learning objectives

The students learn how a calorimeter works and measure the mixing process of water.

Scope of delivery

Cobra SMARTsense Temperature - Sensor for measuring temperature -40 ... 125 °C (Bluetooth)	12903-00	1
Support base, separable for 2 rods	02001-00	1
Stand rods, stainless steel, various sizes	02037-00	1
Universal clamp	37715-01	1
Boss head	02043-00	2
Ring with boss head, i. d. = 10 cm	37701-01	1
Wire gauze with ceramic, 160 x 160 mm	33287-01	1
Lid for student calorimeter	04404-01	1
Agitator rod	04404-10	1
Felt sheet, 100 x 100 mm	04404-20	2
Erlenmeyer flasks, Boro, wide neck, various sizes	46152-00	1
Beakers, Boro, low form, various sizes	46054-00	1
Beakers, Boro, low form, various sizes	46055-00	1
Graduated cylinders, plastic, various sizes	36629-01	1
Pipettes with rubber cap, various sizes	64701-00	1
Butane burner, Labogaz 206 type	32178-00	1
Butane cartridge C206, without valve, 190 g	47535-01	1
Stand rods, stainless steel, various sizes	02031-00	1
measureAPP - the free measurement software for all devices and operating systems	14581-61	1
Glass tube holder with tape measure clamp	05961-00	1