31.4-g sample of water at 290. K is mixed with 50.7 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings

Q: Water, with mass of 339.83 grams at 26.45 degrees celsius, is heated at constant pressure. The water…

A: Given: Mass of water = 339.83 g Initial temperature = 26.45 °C        Or initial temperature =…

Q: If 40.0 g of hot water at 80.0oC is added to 60.0 g of cold water at 20.0oC, what is the final…

A: The final temperature is 44 oC

Q: 10. What would be the final temperature if 55.0g of H2O at 30°C is added to 45.0g of H20 at…

A: The amount of energy going out of the warm water is equal to the amount of energy of the cool water.

Q: If 10 g of water at 52oC and 25 g of water at 10oC were mixed in an insulated container, what will…

A: Given: Specific heat of water = 4.184 J/g°C

Q: The specific heat of mercury is 0.140 J/g°C. Calculate the heat necessary to raise the temperature…

A:

Q: Thirty grams of silicon at 80.0°C is added to 70.0mL of water at 20.0°C. Calculate the final…

A: Given: The mass of silicon = 30 g The initial temperature of silicon = 80.0 °C The volume of water =…

Q: A 10.7 g sample of aluminum at 85.3 0C is added to 117 mL of water initially at 14.6 0C. Assuming no…

A: Given, Mass of aluminum = 10.7g. Initial temperature of aluminum = 85.3oC. Mass of water = 117mL =…

Q: In an experiment designed to measure the heat of fusion of ice, 25 grams of ice at 0oC is dropped…

A: Given: Mass of hot water = 200 g. Initial temperature of water and calorimeter = 30.0 oC Mass of…

Q: When 53.14 grams of fictional compound X is added to water to make 522.1 grams of solution, the…

A:

Q: a reaction causes 20.0 mL of water to decrease temperature by 4.72 oC at constant pressure, what…

A:

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.