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☆☆☆☆☆Cards in this guide (10)
What is The amount of energy required to raise the temperature of one KG of a substance by one KG is determined by its
By its specific heat.
By its specific heat.
By its specific heat.
By its specific heat.
How do you know if a reaction is entropy driven enthalpy driven or driven by both enthalpy and energy
If the ∆H is positive and the ∆S is positive, then the reaction is entropy driven. If the ∆H is negative and the ∆S is negative, then the reaction is enthalpy driven. If ∆H is positive and ∆S is negative, then the reaction is driven by neither of these. If ∆H is negative and ∆S is positive, then the reaction is driven by both of these.
How is Hess's law applied in calculating enthalpy
All the reactions in a path are added together.
How much energy is consumed by thawing 4.3 g ice
4.3 g * 1 mol/18.02 g * 6.03 kJ/mol
What could make G become negative at a given enthalpy and entropy
Changing the temperature
How does the H reaction relate to the Hf of molecules involved in a reaction
Hreaction = Hf products - Hf reactants
Which of these actions increases enthalpy in the air molecules of the Earth's atmosphere
The air being heated by the sun.
Which of the following reactions shows h formation of CO2 releases 393.5 kjmol
C(s)+O2(g) yields CO2(g)+393.5kJ
If you need to multiply the following reaction by 2 to be an intermediate reaction in a Hess's law problem what would be the final value for the enthalpy of reaction you use for this intermediate reac
-572k
The combustion reactions inside the engine of a rocket cause a buildup of heat and pressure. When this heat and pressure escapes into the atmosphere, what force is created
Thrust (apex)
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