2. Find D E for an exothermic reaction in which 12 kJ of heat flows and where 3400 J of work is done on the system.
-8.6 kJ 8.6 kJ 15.4 kJ -15.4 kJ none of the above
3. The law of conservation of energy states that:
energy cannot be destroyed energy cannot be created energy can be converted form one form to another none of the above
4. Heat capacity (C) is:
heat absorbed / increase in temperature heat absorbed / mass of substance increase in temperature / heat absorbed mass of substance / heat absorbed none of the above
5. Which of the following is NOT a conventional definition of standard states?
the standard state of a gaseous substance is a pressure of 1 atm for a substance in a solution, the standard state is a concentration of 1 M for a pure substance in a condensed state, the standard state is the pure liquid or solid for a liquid, the standard state is STP for an element, the standard state is the form in which the element exists under 1atm and 25°C
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