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| How much energy is required to increase the temperature of 2.0 g of aluminum from 25 to 30 degrees Celsius? (AL specific heat = .90 J/g*K) |
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| When change of heat is negative the reaction is... |
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Calculate the change in heat of this reaction:
50.0 cm^3 of a .500 mol/dm^3 solution of KOH mixed rapidly with
50.0 cm^3 of a .500 mol/dm^3 solution of HCl
Initial Temperature = 19.6 degrees
Final Temperature = 23.1 degrees |
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Definition
J = -m * C * change in temp/concentration
-100*4.184*(3.5/(.50*.50/10))
Enthalpy ( in Kj) ==> -59 |
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| Consider the specific heat capacity of the following metals X-1, Y-2, Z-3, A-4, which will show the greatest temperature increase under the same conditions? |
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| If you have two concentrations, you _____ the concentrations to find the total concentration. |
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| What is the enthalpy equation using concentration? |
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Definition
| -C * change in Temp/ concentration |
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| Combustion and Neutralization are ________ processes. |
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| What is the enthalpy of formation for C2? |
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| Bond breaking is ________ and bond making is ________ |
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Definition
| endothermic.... exothermic |
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| What are the standard conditions for enthalpy change? |
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Definition
temperature: 25 degrees Celsius
Pressure: 1 atm
Concentration: 1 mol/dm^3
All substances in standard states |
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