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1. 300. J of energy was released by solution A in a calorimeter. If the mass of solution A was 50.g and the T was 30.C, what is its specific heat capacity.
.20 J/C*g 20 J/C*g 1.2 J/C*g .7 J/C*g none of the above

2. 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 25C

3. Which of the following is a state function?
heat work energy A&B none of the above

4. Which statement concerning Hess's Law is FALSE?
the change in enthalpy is the same regardless of the number of steps DH is also reversed">if reaction is reversed, the sign of DH is also reversed DH is directly proportional to the quantities of reactants and products in a reaction">the magnitude of DH is directly proportional to the quantities of reactants and products in a reaction DH indicates the direction of heat flow">the sign of DH indicates the direction of heat flow all statements are true

5. When a wheel rolls on a surface, the energy transferred by the tires to the surface is called:
fictional heating potential energy kinetic energy carpet burn pathway

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