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Specific Heat and Heat Capacity Worksheet 1 The temperature of 335 g of water changed from 24.5oC to 26.4oC. How much heat did this sample absorb? c for water = 4.18 J/goC (ans. 2.66 kJ) 2. How much heat in kilojoules has to be removed from 225g of water to lower its temperature from 25.0oC to 10.0oC? (ans. –14.1 kJ) 3.
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a) the highest specific heat capacity? b) the lowest heat capacity? 6. Here are the heat capacities of the four substances: 4.18 J/g °c, 1.00 J/g °c, 0.80 J/g °c, & 0.60 J/g °c. Match & then label each substance with its specific heat capacity on the graph. 7. If something has a high specific heat capacity will it take a lot of heat or a ...
1. What does it mean if water has a higher specific heat capacity than oil? – It requires ….. energy to …. 2. What is the difference between thermal energy and temperature? (what is temperature a measure of?) 3. 4 kg of sand, and 4 kg of water are at 30 oC. Which has more energy in its thermal store? Explain your answer
p is the heat change associated with a reaction at constant pressure. Since ΔV ≠ 0, PV work can also be done. 8. What is the difference between heat capacity and specific heat? Heat capacity is the amount of heat required to raise the temperature of a substance a given amount. Specific heat is the amount of heat necessary to raise the
(Specific heat capacity of granite is 0.1 cal/gºC) 38 cal 3. How much heat is released when 30 g of water at 96°C cools to 25°C? The specific heat of water is 1 cal/g°C. 2130 cal (endothermic) 4. If a 3.1g ring is heated using 10.0 calories, its temperature rises 17.9°C. Calculate the specific heat capacity of the ring. 0.18 cal/g °C 5.
Calculating Specific Heat Extra Practice Worksheet Q = mc∆T, where Q = heat energy, m = mass, and ∆T = change in temp. Remember, ∆T = (T final – T initial). Show all work and proper units. 1. A 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°C to 175°C. Calculate the specific heat ...
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The specific heat capacities of some common substances are shown in the table below. Substance State at 25ºC, 101 kPa Specific heat capacity (J g–1 ºC–1 ) Aluminium Solid 0.90 Nickel Solid 0.44 Copper Solid 0.39 Water Liquid 4.18 Ethanol Liquid 2.46 Propanone (acetone) Liquid 2.13 No. Question Answer 1 When equal masses of water and
