WebSuppose in the Icy Hot lab that the burner transfers 325 kJ of energy to 450 g of liquid water at 20.0C. What mass of the water would be boiled away? ttne Circle: Endothermic … WebSuppose a bag full of ice (450 g) at 0.0 *C sits on the counter and begins to melt to hiquid water. How much energy must be absorbed by the ice if 2/3 of it melted? 6. A serving of Cheez-Its releases 130 kcal (1 kcal = 1.18 kJ) when digested by your body.
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WebJul 4, 2011 · Suppose you get n drinks and these start at room temperature. Let me say room temperature is 22 °C (about 72 °F). ... This says that you need about 1 ten pound bag of ice for a 12 pack. Remember ... WebOct 4, 2024 · Answer: The final temperature of water is 54.5 °C. Explanation: Given data: Energy transferred = 65 Kj Mass of water = 450 g Initial temperature = T1 = 20 °C Final temperature= T2 = ? Solution: First of all we will convert the heat in Kj to joule. 1 Kj = 1000 j 65× 1000 = 65000 j specific heat of water is 4.186 J /g. °C Formula: q = m × c × ΔT head lice pillows
cooling - Are there differences between Ice Packs?
WebMar 29, 2016 · 6. Suppose a bag full of ice (450 g) at 0.0 ˚C sits on the counter and begins to melt to liquid water. How much energy must be absorbed by the ice if 2/3 of it melted? 7. If this same quantity of energy were transferred to 2.5 kg of water at its boiling pt, what fraction of the water would be vaporized? WebDec 21, 2024 · To answer to this question, you need the equation: Q = Lice × m Q is the amount of heat needed to melt the ice, Lice is the Latent Heat of melting for ice, and m is the given mass of ice. Various tables of latent heats give us: Lice = 3.34 ⋅ 105 J kg m = 250g = 0.25kg. So: Q = (3.34⋅ 105 J kg) × (0.25 kg) = 83,500J = 83.5kJ WebStudy with Quizlet and memorize flashcards containing terms like What is the percent by mass of aluminum in bauxite, Al2O3 •3H2O, the common ore of aluminum?, What are intensive properties?, 3 examples of intensive properties and more. goldner-conroy