Lab Quiz 5

Lab Quiz 5 - process. C. It is a state function. D. It is...

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Web Quiz You can login to this page multiple times but you cannot take the quiz more than once. . Submit your answer for grading by Clicking on the "Grade Answers" button at the bottom of the page only when you are sure of your answers. Question # 1 In the lab, you mix two solutions (each originally at the same temperature) and the temperature of the resulting solution decreases. Which of the following is true? A. The chemical reaction is releasing energy. B. The energy released is equal to s x m x T . C. The chemical reaction is absorbing energy. D. The chemical reaction is exothermic. E. More than one of these. Question # 2 Which one of the following is true concerning enthalpy? Online Text A. It is an intensive property, always having the units energy per mole. B. It usually is largely different in magnitude than the internal energy change of a
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Unformatted text preview: process. C. It is a state function. D. It is measured under conditions of constant volume. E. The enthalpy change of a reaction is the inverse of the enthalpy change of the reverse reaction. Question # 3 Exactly 313.5 J will raise the temperature of 10.0 g of a metal from 25.0C to 60.0C. What is the specific heat capacity of the metal? A. 3.74 J/gC B. 0.896 J/gC C. 9.70 J/gC D. 1.73 J/gC E. none of these Question # 4 Two metals of equal mass with different heat capacities are subjected to the same amount of heat. Which undergoes the smallest change in temperature? A. The metal with the higher heat capacity. B. The metal with the lower heat capacity. C. Both undergo the same change in temperature. D. You need to know the initial temperatures of the metals. E. You need to know which metals you have....
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This note was uploaded on 10/25/2010 for the course CHEM 105ALg taught by Professor Bau during the Spring '07 term at USC.

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Lab Quiz 5 - process. C. It is a state function. D. It is...

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