From a 50-lb block of ice initially at 25°F, 200 Btu of heat is removed. What is its final temperature?
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- A steel section of the Alaskan pipeline had a length of 55.1 m and a temperature of 18.2 °C when it was installed. What is its change in length when the temperature drops to a frigid -30.4 °C?A 85.0-gram lead bullet hits a steel plate, both initially at 20 °C. The bullet melts and splatters on impact. Assuming that the bullet receives 88% of its kinetic energy as heat energy, at what minimum speed must it be traveling to melt on impact? (The melting temperature of Lead is 327°C)Please asap
- A new liquid substance has been discovered that freezes at 45 degrees celsius and has a latent heat of 462,000 J/kg when freezing. a scientist poured the liquid (which was at 45 celsius) into a 9 degrees celsius cup (Ccup = 864 J/kg*K) which caused some, but not all, of the liquid to freeze. as a result, the liquid lost 86,000 J of ehat until thermal equilibrium was reached. determine how much of the liquid froze and the cup's mass.A 23 g ice cube at -15.0oC is placed in 129 g of water at 48.0oC. The Specific heat of ice is 2.090 J/g K, the specific heat of water is 4.186 J/g K, and the latent heat of fusion for water is 333 J/g. What is final temperature in celsius of the system when the equilibrium is reached. Ignore the heat capacity of the container and assume this is in a calorimeter.A 50.0 g copper calorimeter contains 290 g of water at 20.0°C. How much steam must be condensed into the water if the final temperature of the system is to reach 40.0°C?
- A steel section of the Alaskan pipeline had a length of 62.1 m and a temperature of 21.0 °C when it was installed. What is its change in length when the temperature drops to a frigid -34.2 °C?A new liquid substance has been discovered that freezes at -23°C. A scientist poured the liquid (which was at -23°C) Into a 0.6 kg cup (Coup = 793 J/kg-K) which caused some, but not all, of the liquid to freeze (only 0.216 kg of the liquid froze). As a result, the liquid lost 40,000 J of heat until thermal equilibrium was reached. Determine the latent heat of the substance & the Initial temperature of the cup. Topul °℃A cube of ice is taken from the freezer at -9.5 °C and placed in a 95-g aluminum calorimeter filled with 300 g of water at room temperature of 20.0 °C. The final situation is observed to be all water at 16.0 °C. The specific heat of ice is 2100 J/kg · C°, the specific heat of aluminum is 900 J/kg · C°, the specific heat of water is is 4186 J/kg·C°, the heat of fusion of water is 333 kJ/Kg. Part A What was the mass of the ice cube? Express your answer to two significant figures and include the appropriate units. ? Value Units m = Submit Request Answer