How much energy is required to change a 50-g ice cube from ice at −35°C to steam at 120°C? MJ
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How much energy is required to change a 50-g ice cube from ice at
to steam at 120°C?
MJ
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- 9.00 kg of ice at -4.30°C is added to a cooler holding 30 liters of water at 20.0°C. What is the temperature of the water when it comes to equilibrium?1-kg of carbon dioxide (MW=44; k = 1.288) is compressed from 1 MPa and 200°C to 3 MPa in a piston-cylinder device arranged to execute a polytropic process for which PV1.2 = C. Determine the final temperature of the carbon dioxide, in °C. What is the resulting heat transfer, in kJ?What mass of water at 28.0°C must be allowed to come to thermal equilibrium with a 1.70-kg cube of aluminum initially at 150°C to lower the temperature of the aluminum to 62.0°C? Assume any water turned to steam subsequently recondenses. kg
- Please asapIn Dexter’s lab, he pours 1.65kg of molten gold at 1063°C into a 1.30kg iron cauldron filled with 2.70kg of water both at 15.0°C. At the same moment he drops a 0.400kg piece of ice initially at -20.0°C into the cauldron and begins to stir. If we treat the cauldron and its contents as a calorimeter, what will be the final temperature for the system in degrees Celsius?A 40 g block of ice is cooled to -76°C and is then added to 610 g of water in an 80 g copper calorimeter at a temperature of 27°C. Determine the final temperature of the system consisting of the ice, water, and calorimeter. Remember that the ice must first warm to 0°C, melt, and then continue warming as water. The specific heat of ice is 0.500 cal/g ·°C = 2090 J/kg°C.
- A certain amount of 50 g ice is dipped into 200 g of water in a container.thermally insulated. If the water is initially at 25 ºC and the ice comes directly from a cool to -15ºC. Use the specific heat of ice as 0.5 cal/gºCa) What is the final temperature of the drink when it reaches thermal equilibrium?b) If all the ice does not melt, how much ice will be melted when thethermal equilibrium is reached?What mass of water at 20.0°C must be allowed to come to thermal equilibrium with a 1.95-kg cube of aluminum initially at 150°C to lower the temperature of the aluminum to 60.0°C? Assume any water turned to steam subsequently recondenses. kgA person tries to cool down her bath water by adding 5.0 Kg of ice at 0°C to 75.0 Kg of water at 70°C. What is the final temperature of the water? (Lf = 333 KJ/Kg & cH2O =4186 J/Kg°C)
- Ice has formed on a shallow pond, and a steady state has been reached, with the air above the ice at -7.6°C and the bottom of the pond at 3.7°C. If the total depth of ice + water is 2.3 m, how thick is the ice? (Assume that the thermal conductivities of ice and water are 0.40 and 0.12 cal/m-Cº-s, respectively.) Number UnitsSteam at 100°C is condensed into a 62.0 g brass calorimeter cup containing 220 g of water at 21.0°C. Determine the amount of steam (in g) needed for the system to reach a final temperature of 48.0°C. The specific heat of brass is 380 J/(kg · °C).How much heat does it take to boil 1.0 m³ H₂O at 100K? Assume the specific heat of ice is 2090 J/(kg K), and the specific heat of water is 4190 J/(kg K). Q = 3.1x10³¹ J