Thermochemistry Flashcards
The property of a system that depends only on its present state and not how it arrives at it is called
State function
Is chemical energy a form of potential energy?
Yes
Is chemical energy a form of potential energy
Yes
Explain the reason for your answer in qu 3
What is an isolated system
A system in which neither energy nor matter can be exchanged with its surroundings is called
Mention two things in chemical reaction that depends only on the initial and final states of the system and not the path way
State function
Total energy change
What is a calorie
The amount of heat needed to raise the temperature of water by 1 degree Celsius
1)Are heat and work state functions
2)Explain your answer
1) no
1 calorie equals how many joules
4.184J
Give five examples of exothermic reaction
Is dissolving detergent in water an endothermic reaction
No
Mention 4 differences between exothermic and endothermic reactions
In the thermodynamic world the universe is divided into two major components called
The system and the surroundings
What is the standard energy of formation of all elements in their standard states
Zero
Does standard enthalpy of change of state take place under standard conditions
No
