Chapter 10/11 Practice Test Assignment #6

11. What substance requires the most amount heat energy to cause 1 degree increase?  Silver Air  water   lead

12. What is specific heat? heat energy required to raise 1 kg by 10 degrees Kelvin  heat energy required to raise 1 kg by 1 degree Celsius heat energy required to raise 1 g by 1 degree Kelvin 

13. The heat energy required to raise 150. 0 ml of water from 25 13. The heat energy required to raise 150.0 ml of water from 25.0 oC to 80.0 oC is 3 450 J 34 500 J  40 950 J 3 650 000 J

14. It takes 4500 J to raise the temp. of 0. 0100 kg of iron by 1. 0 K 14. It takes 4500 J to raise the temp. of 0.0100 kg of iron by 1.0 K. What is its specific heat capacity? 450 J g-1 K-1   900 J g-1 K-1  45 J g-1 K-1  90 J g-1 K-1

15. Which of the following reactions is endothermic? Ice melting   Water freezing  Steam condensing  Gas burning

16. If ∆H is negative, then the reaction is... exothermic   endothermic  isothermic  at equilibrium

17. What is occurring during segment DE in this graph? Water is getting hotter Water is freezing Water is getting colder Water is boiling 

18. If 5852J of heat is added to a 40. 5 g sample of water at 300 18. If 5852J of heat is added to a 40.5 g sample of water at 300.0 K, what will its final temperature be? 340 K  325 K  330 K  335 K 

19. The specific heat capacity of water is unusually high. As a result… water is usually warmer than its surroundings ice is more dense than liquid water it is easy to raise the temperature of water it is difficult to raise the temperature of  water 

20. In calorimetry, the heat released by an exothermic reaction is absorbed by the reactants  surrounding water    atmosphere  thermometer

21. Water molecules are attracted to other water molecules 21. Water molecules are attracted to other water molecules. This property is called _____ cohesion   adhesion  universal solvent  high specific heat

22. Is condensation endothermic or exothermic? Both neither

23. Predict the strongest IMF force that would occur in O2 Dipole-Dipole  Hydrogen  London dispersion 

24. Which factors are favored by a spontaneous reaction? Increase in enthalpy and increase in entropy Increase in enthalpy and decrease in entropy Decrease in enthalpy and decrease in entropy Decrease in enthalpy and increase in entropy

they all would have the same boiling point 25. A solid with which type of bond would have the lowest boiling point? Metallic Covalent Ionic they all would have the same boiling point

11. What substance requires the most amount heat energy to cause 1 degree increase?  Silver Air  water   lead

12. What is specific heat? heat energy required to raise 1 kg by 10 degrees Kelvin  heat energy required to raise 1 kg by 1 degree Celsius heat energy required to raise 1 g by 1 degree Kelvin 

13. The heat energy required to raise 150. 0 ml of water from 25 13. The heat energy required to raise 150.0 ml of water from 25.0 oC to 80.0 oC is 3 450 J 34 500 J  40 950 J 3 650 000 J

14. It takes 4500 J to raise the temp. of 0. 0100 kg of iron by 1. 0 K 14. It takes 4500 J to raise the temp. of 0.0100 kg of iron by 1.0 K. What is its specific heat capacity? 450 J g-1 K-1   900 J g-1 K-1  45 J g-1 K-1  90 J g-1 K-1

15. Which of the following reactions is endothermic? Ice melting   Water freezing  Steam condensing  Gas burning

16. If ∆H is negative, then the reaction is... exothermic   endothermic  isothermic  at equilibrium

17. What is occurring during segment DE in this graph? Water is getting hotter Water is freezing Water is getting colder Water is boiling 

18. If 5852 J of heat is added to a 40. 5 g sample of water at 300 18. If 5852 J of heat is added to a 40.5 g sample of water at 300.0 K, what will its final temperature be? 340 K  325 K  330 K  335 K 

19. The specific heat capacity of water is unusually high. As a result… water is usually warmer than its surroundings ice is more dense than liquid water it is easy to raise the temperature of water it is difficult to raise the temperature of  water 

20. In calorimetry, the heat released by an exothermic reaction is absorbed by the reactants  surrounding water    atmosphere  thermometer

21. Water molecules are attracted to other water molecules 21. Water molecules are attracted to other water molecules. This property is called _____ cohesion   adhesion  universal solvent  high specific heat

22. Is condensation endothermic or exothermic? Both neither

23. Predict the strongest intermolecular force that would occur in O2 Dipole-Dipole  Hydrogen  London dispersion 

24. Which factors are favored by a spontaneous reaction? Increase in enthalpy and increase in entropy Increase in enthalpy and decrease in entropy Decrease in enthalpy and decrease in entropy Decrease in enthalpy and increase in entropy

they all would have the same boiling point 25. A solid with which type of bond would have the lowest boiling point? Metallic Covalent Ionic they all would have the same boiling point