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How much energy is required to convert 2.3kg of ice at 0C to water at 29C ? How much energy is required to convert 2.3kg of ice at 0C to water at 29C ?
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- How much energy is required to convert 4.9kg of ice at 0C to water at 31C ? How much energy is required to convert 4.9kg of ice at 0C to water at 31C ? The latent heat of fusion of ice is: Lf=3.33×105J/kgLf=3.33×105J/kg The specific heat capacity of water is 4186J/kg∘CAn ideal gas at 20∘C consists of 2.2 x 1022 atoms. 8.5 J of thermal energy are removed from the gas. What is the new temperature in ∘C?An ideal gas at 20∘C consists of 2.2×1022 atoms. 1.4 J of thermal energy are removed from the gas.What is the new temperature in ∘C?
- An ice cube is 50 grams in mass and at 0⁰C temperature. If the ice cube is dropped into an 80 grams Aluminum calorimeter cup which contains 200 grams of water, both at 30⁰C, what is the final equilibrium temperature? [c(Al) = 900 J/kg.⁰C, c(water) = 4186 J/kg.⁰C, Lf = 3.33 x 105 J/kg]1. (a) What is y if v = 0.250c? (b) Ifv = 0.500c?1 kg of water at 700C is poured into a bucket that contains 3kg of water at 100C. Find the equilibrium temperature (neglect the influence of the buckets).
- A steel measuring tape used by a civil engineer is 50metres long and calibrated at 200C. The tape measures a distance of 35.694m at 350C. What is the actual distance measured? D = DLLT()0) a Coefficient of linear expansion of steel a = 1.2 x10-5 oC-1A 10 g ice cube, initially at 0 ºC, is melted in 100 g of water that was initially 20 ºC. After the ice has melted, the equilibrium temperature is 10.93 ºC. Calculate: a. The total heat lost by the water (the specific heat for water is 4.186 J/g/K). b. The heat gained by the ice cube after it melts (the specific heat for ice is 2.093 J/g/K). c. The heat it took to melt the ice (Hint: it takes 334 J of heat energy to melt 1 g of ice)The density of water at 40 C is 1000 kg/ m3. What is the density of water at 950C. Use β= 210x10-6 C0.
- A copper sphere cools from 620C and 500C in ten minutes and to 420C in the next ten minutes. Calculate the temperature of the surroundings. What is the temperature of the body at the end of next eight minutes?1. (a) What is y if v = 0.250c? (b) If v = 0.500c?Does a refrigerator full of food consume more power if the room temperature is 200C than if it is 150C? Or is the power consumption the same? Explain your reasoning.