Coffee Cup Calorimeter Vs Bomb Calorimeter

Essentially a bomb calorimeter is airtightsealed while a regular calorimeter is open.

Coffee cup calorimeter vs bomb calorimeter. Im like so lost. A coffee cup calorimeter is essentially a polystyrene Styrofoam cup or two with a lid. A constant volume calorimeter is also more accurate than a coffee.

Instead of bomb a styrofoam cup is used in this calorimeter. It acts as good adiabatic wall and doesnt allow transfer of heat produced during the reaction to its surrounding. A schematic representation of a coffee cup calorimeter is given in Figure 77.

The change of temperature of. Whenever a chemical reaction takes place in the coffee cup calorimeter the water absorbs the heat of the reaction. The Styrofoam cup and water make up the surroundings and the reactant dissolved in the water make up the system.

2Mog ---- Mnaq and this reaction is at standard state so theres 1 atm of 2Mog and 1M Mnaq In a 1000 mL Bomb Calorimeter constant volume you reacted enough MoHills to create 0204 moles of Mountains. A constant pressure calorimeter measures the change in enthalpy. A simple example of a constant-pressure calorimeter is a coffee-cup calorimeter which is constructed from two nested Styrofoam cups and a lid with two holes which allows for the insertion of a thermometer and a stirring rod.

Chemists often use another one known as a bomb calorimeter. How does a coffee cup calorimeter work. The inner cup holds a known amount of a liquid usually water that absorbs the heat from the reaction.

As such the heat that is measured in such a device is equivalent to the change in enthalpy. Unlike a bomb calorimeter a coffee cup calorimeter is a constant pressure calorimeter. What explains the key difference between a bomb calorimeter and a coffee cup calorimeter.