(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 0.550...
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 0.600 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
(a) How much heat transfer (in kcal) is required to raise the temperature of a 0.600 kg aluminum pot containing 3.00 kg of water from 20.0°C to the boiling point and then boilway 0.650 kg of (b) How long (ins) does this take if the rate of heat transfer is 600 W (1 watt - 1 Joule/second (1 W = 1/s))?
Heat transfer is required to raise the temperature of a 0.699 kg aluminum pot containing 2.77 kg of water from 32.5ºC to the boiling point and then boil away 0.695 kg of water. If the rate of heat transfer is 292 W, how long does this process take? Aluminum's specific heat is 0.215 kcal/kgºC; Water's specific heat is 1.00 kcal/kgºC; and heat of vaporization for water is 539 kcal/kg.
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.)
How much heat is required to raise the temperature of 20.2 g of water from -25 °C to 115 °C? heat: kcal
It takes 1 kcal to raise the temperature of 1 kg of liquid water by 1 C, but only 0.5 kcal to raise the temperature of 1 kg of ice or water vapor by 1 C. Also, it takes 80 kcal to melt 1 kg of ice sitting at 0 C, and 540 kcal to evaporate 1 kg of liquid water sitting at 100 C. 1) How much heat is required to melt 2 kg of ice at 0 C?...
heat in terms of kcals not kJ How much heat is required to raise the temperature of 11.1 g of water from -45°C to 175 °C? heat: kcal
How much heat transfer in kJ is necessary to raise the temperature of a 0.347 kg piece of ice from -12.6ºC to 132.1ºC , including the energy needed for phase changes? (cice = 2090 J/kgºC, cwater = 4186 J/kgºC, csteam = 1520 J/kg, Lvap = 2256 kJ/kg, and Lfus = 334 kJ/kg)
2. Heat flow, temperature changes, and changes of phase You have a furnace (Tfurnace 400° C that effectively provides an infinite heat source. You design a steel rod (k 50.2 W/m K) that can transmit heat from the furnace to need to a pot of water (specific heat, c = 4190 J/kg.K to raise it's temperature to 100° C. Suppose 1 kg of water in the pot, and the water is initially at a temperature that you have m 10°...