Question 5.10: What will be the final temperature if we add 1000. cal of he...
What will be the final temperature if we add 1000. cal of heat to 10.0 g of ice at 0°C?
Strategy
The first thing the added heat does is to melt the ice. So we must first determine if 1000 cal is sufficient to melt the ice completely. If less than 1000. cal is required to melt the ice to liquid water, then the remaining heat will serve to raise the temperature of the liquid water. The specific heat (SH; Section 1.9) of liquid water is 1.00 cal/g · °C (Table 1.4).
Table 1.4 Specific Heats for Some Common Substances
Specific Heat (cal/g · °C) | Substance | Specific Heat (cal/g · °C) | Substance |
0.42 | Wood (typical) | 1 | Water |
0.22 | Glass (typical) | 0.48 | Ice |
0.2 | Rock (typical) | 0.48 | Steam |
0.59 | Ethanol | 0.11 | Iron |
0.61 | Methanol | 0.22 | Aluminum |
0.56 | Ether | 0.092 | Copper |
0.21 | Carbon tetrachloride | 0.031 | Lead |
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