Project #4951 - chem

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The specific heat capacity of a substance is the amount of heat needed
 
 
 
 
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The molar heat capacity of iron (M = 55.8) is 25.1 J/K•mol. How much energy must be added to increase the temperature of 111.6 g of iron by 10 K?
 
 
 
 
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For a given substance, the term ∆H refers to
 
 
 
 
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How much energy does an aluminum (M = 27.0) sample gain if its molar heat capacity is 24.2 J/mol•K, its mass is 13.5 g, and it is heated from 10.0°C to 40.0°C?
 
 
 
 
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If the ∆H of a system is measured as -177 kJ, the change is
 
 
 
 
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During an endothermic reaction, total energy
 
 
 
 
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The enthalpy of formation of an element is
 
 
 
 
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The enthalpy of formation of a compound is -612 kJ/mol, and the products of its combustion have a total enthalpy of formation of -671 kJ. What is the enthalpy of combustion of this compound?
 
 
 
 
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According to Hess’s Law, the entropy of a reaction
 
 
 
 
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What is the value of ∆G at 250 K for a reaction in which ∆H = -185 kJ/mol and ∆S = +2.00 kJ/mol•K?
 
 
 
 
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Subject Science
Due By (Pacific Time) 04/24/2013 11:00 pm
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