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In: Physics

12-11)A 38-g ice cube floats in 230 g of water in a 100-g copper cup; all...

12-11)A 38-g ice cube floats in 230 g of water in a 100-g copper cup; all are at a temperature of 0°C. A piece of lead at 96°C is dropped into the cup, and the final equilibrium temperature is 12°C. What is the mass of the lead? (The heat of fusion and specific heat of water are 3.33 10⁵ J/kg and 4,186 J/kg · °C, respectively. The specific heat of lead and copper are 128 and 387 J/kg · °C, respectively.)

13)A student measures the following data in a calorimetry experiment designed to determine the specific heat of aluminum. (Do not assume atmospheric pressure.)

Initial temperature of water and calorimeter:	70°C
Mass of water:	0.400 kg
Mass of calorimeter:	0.040 kg
Specific heat of calorimeter:	0.63 kJ/kg · °C
Initial temperature of aluminum:	26.5°C
Mass of aluminum:	0.200 kg
Final temperature of mixture:	65.9°C

Use these data to determine the specific heat of aluminum.
J/kg · °C

Expert Solution

Now, this ice is converted into water

Energy of system is conserved.

genius_generous answered 2 years ago

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