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1. |
What should be the temperature of 1g of ice, so that when it’s added to 9g of water, lowers the temperature of water by 10°C? Sw = 1cal/ g°C, Sice = 0.5cal/ g°C, Lfus= 80cal/g. |
A. | 20°C |
B. | -20°C |
C. | 0°C |
D. | 10°C |
Answer» C. 0°C | |