How much water is needed starting at 0°C heating up and boiling away to solidify 1005 grams of molten aluminum at 660°C. Assume all of the heat from the aluminum goes into just enough water to raise the temperature and then boil the water away.
A) Find an equation for the mass of the water
B)Calculate the numerical result in grams.
How much water is needed starting at 0°C heating up and boiling away to solidify 1005...
How much water is needed starting at 0°C heating up and boiling away to solidify 1005 grams of molten aluminum at 660°C. Assume all of the heat from the aluminum goes into just enough water to raise the temperature and then boil the water away. A) Find an equation for the mass of the water. hint ( mass of water)= (mass of alum) (Lf/ cw)( Tw )+(Lv) {w for water, al for aluminum} B)Calculate the numerical result in grams.
a. How much heat transfer (in kcal) is required to raise the temperature of a 0.550 kg aluminum pot containing 2.00 kg of water from 25.0°C to the boiling point and then boil away 0.600 kg of water? b. How long (in s) does this take if the rate of heat transfer is 600 W (1 watt = 1 joule/second (1 W = 1 J/s))?
(a). How much heat transfer (in kcal) is required to raise the temperature of a 0.550 kg aluminum pot containing 3.00 kg of water from 50.0°C to the boiling point and then boil away 0.800 kg of water? (b). How long (in s) does this take if the rate of heat transfer is 600 W (1 watt = 1 joule/second (1 W = 1 J/s))?
(a)How much heat transfer (in kcal) is required to raise the temperature of a 0.600 kg aluminum pot containing 2.00 kg of water from 45.0°C to the boiling point and then boil away 0.650 kg of water? _______kcal (b) How long (in s) does this take if the rate of heat transfer is 550 W (1 watt = 1 joule/second (1 W = 1 J/s))? ________s
What minimum heat is needed to bring 250g of water at 50?C to the boiling point and completely boil it away? The specific heat of water is 4190 J/(kg?K) and its heat of vaporization is 22.6
How much heat (in Joules) is needed to completely boil away 300 grams of ice at -6o C?
3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0'C. The specific heat of water is 4.18 J/gºC. Show your work Final Answer 4. Aluminum metal has a specific heat of 0.901 J/g C. How much heat is transferred to a 6.75 g piece of aluminum initially at room temperature, 20.0°C, when it is placed into boiling water? The temperature of boiling water is 100°C. Show your work Final Answer 5....
How much time (in seconds) is needed for a surgical cauterizer to raise the temperature of 3.00 g of tissue from 37.0 degrees C to 100 degrees C ad then boil away 0.200 g of water, if it puts out 3.50 mA at 20.0 kV? Ignore heat transfer to the surroundings. (Assume the specific heat of tissue is 3,500 J/(kg*degreeC) and the latnet heat of vaporization of water is 2,256 kJ/kg.)
A 0.250-kg of water is initially at temperature of 29 °C. How much heat is required to boil away two-third the mass of the water?
3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0°C. The specific heat of water is 4.18 J/gºC. Show your work Final Answer 4. Aluminum metal has a specific heat of 0.901 J/g C. How much heat is transferred to a 6.75 g piece of aluminum initially at room temperature, 20.0°C, when it is placed into boiling water? The temperature of boiling water is 100°C. Show your work Final Answer 5....