Question

Guidelines for Discussion: Answer the following questions, as per your experimental observations. 1. What happens if initial temperature is not recorded in each experiment? 2. What happens if the calorimeter is not covered properly? 3. How will you get the final temperature? 4. What are the techniques used in this experiment? 5. Comment on possible accuracy of your results Guidelines for Conclusion: 1. What is your result considering the objective (s) of the experiment? 2. What did you learned in this experiment? Lab Assignment: 1. Define Exothermic and Endothermic reaction. Clasify the above experiments as exothermic or endothermic. 2. When you draw the graph for the third experiment, why did the curve graph go down? 3. When is the lattice energy for salt greater than that of Hydration energy during the dissolution of salt in water? Is this reaction endothermic or exothermic?

calorimetry experiment

Answer 1

Guidelinex for Dixcursion :- (1) Lowering the tempreture of transfer to the calorimeter Change the specific heat because you are measuring tempreture of metal as So it is important to the metal during the is not going to capacity of the metal, the change in the it cools off. f measure intral tempreture. (2) A calorimeter usen an insulated lid, or insulated surroundings to keep the heat of the liquid or sodil sample during a reaction for an accurate measurement in the change of tempreture to provide the best possible accurate rexults. The goal of insulating the calorimeter system is to minimize the tempreture loss from the system (Calorimeter) to the surrounding over time.

find tempreture an equation of can be sorted out by using q= mc oT Here, q= Heat enengy m= mast ca specific heat Ata change in tempretore Trial simply by using .... Tygnal - 9 + Tinitral or (Tjinal - Tinitinas) To get mc (4) Calorimetry is used to measure amount of heat tramfered to or from a substance. To to so, the heat in exchanged with a calibrated object. The change in tempreture of the measuring part of the calorimeter gives the mean idea of calorimeter experiment Experiment was to determine the heat of an adrabatre calorimeter. An Adiabatic calorimeter is an apparatus vxed to measure heat changes for experiment done at constant pressure. "Heat capacity in the amount of heat required to raise the heat of a system fc. "

(5) First food trial result using which modification is 84.94. produced accurate. a Guidelines for Conclusion :- (2) Measure the amount of thermal energy tranuffened in a chemical or physical process. This required careful measurement of the tempreture change that occure doring the process and the masses of the system and surrounding. Lab Assignment :- (1) that Exothermic releases When DTG Reaction energy tive - Experiment or Process through light or heat. then it is exothermic reaction. (2) Process which requires its surrounding, vxually or the in Endothermie Reaction - absorby enengy from form of heat. When ST ix -ive then it is endothermic reaction.