| Chapter 16 Test Continued... | ||||||||||||||
| 9. Use the equations shown below to determine
the enthalpy for the final reaction: (1)3CO2 + 4 H2O(l)=>C3H8(g) + 5O2{g} q=3108KJ (2)C(graphite) + O2=>CO2 q=-552KJ (3)C3H8(g)=>3 C(graphite) + 4H2(g) q=146KJ H2O(l)=>H2(g) + 1/2O2(g) q=? a. 765 kJ b. 400 kJ c. 6 kJ |
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| 10. What is the law of disorder? a. the measure of the disorder or randomness of the particles that make up a system b. the tendancy toward disorder or randomness c. energy that is availible to do work |
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| 11.In which case can you predict if the change in entropy is positive or negative by examining the equation for a reaction or process? a. the dissolving of a gas in a solvent always results in a decrease in entropy b. mixing a carbon compound with a hydrogen compound always results in a decrease in entropy c. a decrease in the mass of a substance always in accompanied by a increase in the planned motion of its particles |
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| Congratulations on finishing the test! Now check your answers to see if you have skills! |
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