A 150.0 g block of lead at 100.0 °C is placed in a calorimeter with 50.0 g of water at 22.0 °C. The final temperature of the system is 26.2 °C. 1. Calculate the heat lost by the lead (Clead = 0.128 (°C × g)' 2. Calculate the heat gained by the water. (Cwater = 4.184 .) (°C x g) 3. Calculate the heat gained by the calorimeter. 1 4. Calculate the Ccalorimeter.
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
A 150.0 g block of lead at 100.0 degree celsisus is placed in a calormeter with 50.0 g of water at 22.0 degrees celsisus. The final temperature of the system is 26.2 degree celsius.
Use that inforamtion above to solve questions 1-4: Picture attached below. Need help ASAP
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
