1. If 140 J of heat are required to increase the temperature of a body by 20oC, then its heat capacity in J/oC is   160   2   7   2800   Hint Half-n-half Clue   2. If the temperature of 30 g of copper [having a specific heat capacity of 0.4 J/(g oC)] is lowered by 10oC, then the heat lost by the copper is   4.0 J   300 J   120 J   12 J   Half-n-half Clue   3. If the heat capacity of 25 g of aluminum is 20 J/oC, then the specific heat capacity of aluminum in J/(g oC) is   1.25   0.8   500   45   Half-n-half Clue   4. If the specific heat capacity of iron is 0.5 J/(g oC), then the heat capacity of an iron solid of mass 190 g is   190 J/oC   19 J/oC   380 J/oC   95 J/oC   Half-n-half Clue   5. Consider the graph of temperature (in oC) vs. time (in minutes) given above showing the cooling curves of liquids A and B. If 10 g of liquid A lose 840 J of heat in the first 6 minutes, the specific heat capacity of liquid A is about _______ J/(g oC).   21   14   8.4   2.1   Half-n-half Clue   6. If 816 J of heat are gained by 20 g of oil [having a specific heat capacity of 2.4 J/(g oC)], the temperature change in the oil is   34 oC    48 oC    2 oC   17 oC   Half-n-half Clue   7. If 83680 J of heat are required to raise the temperature of 4 kg of water by 5oC, then the specific heat capacity of water in J/(kg oC) is   8368   16736   4184   20920   Half-n-half Clue