To determine the specific heat of an object, a student heats it to 100 C in boiling

To determine the specific heat of an object, a student heats it to 100 °C in boiling water. She then places the 34.5-g object in a 151-g aluminum calorimeter containing 114 g of water. The aluminum and water are initially at a temperature of 20.0 °C, and are thermally insulated from their surroundings. If the final temperature is 23.6 °C, what is the specific heat of the object? Referring to Table 16-2, identify the material in the object.

Table 16-2

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TABLE 16-2 Specific Heats at Atmospheric Pressure Specific heat, c [J/(kg · K)] Substance Water 4186 Ice 2090 Steam 2010 Beryllium 1820 Air 1004 Aluminum 900 Glass 837 Silicon 703 Iron (steel) 448 Copper 387 Silver 234 Gold 129 Lead 128