REVIEW ACS V
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Calculate the change in enthalpy for the chemical reaction N2(g) + 3H2(g) –> 2NH3(g) Select one:
In a Styrofoam coffee cup calorimeter with a lid, the experiment takes place Select one:
The following question is from the ACS Study Guide. It would be better to ask which diagram best represents the change in enthalpy for the dissolution process. Select one:
When a 86 g sample of an alloy at 100.0 oC is dropped into 90.0 g of water at 26.2 oC, the final temperature is 30.3 oC. What is the specific heat of the alloy? (The specific heat of water is 4.184 J/(goC).)
For which of the following reaction is the enthalpy of formation of the compound equal to the ΔH of reaction? Select one:
What is the enthalpy of formation of CO(g) in kJ? 2CO(g) + O2(g) –> 2CO2(g). ΔH reaction = -566 kJ ; ΔH CO2(g) =-393.5 kJ/mol.
When a liquid freezes and then melts, the steps are Select one:
It takes more energy to boil away a pan of water at 100 oC than to heat it from room temperatue to 100 oC, because Select one:
When 192 J of energy are added to a sample of gallium that is initially at 25.0 oC, the temperature rises to 35.0 oC. What is the volume of the sample in cubic centimeter?