The thermal capacity of 40g of aluminium (specific heat = 0.2 cal°g-1 C-1) is ___________ a) 40cal°C-1 b) 160 cal°C-1 c) 200 cal°C-1
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The thermal capacity of 40g of aluminium (specific heat = 0.2 cal°g-1 C-1) is ___________
a) 40cal°C-1
b) 160 cal°C-1
c) 200 cal°C-1
d) 8 cal°C-1
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- Calculate the latent heat of vapourisation for water at 54°C using the data contained in the table below. Temperature /°C p(sat)/kPa Saturated Liquid Volume/cm^3g^-1 Saturated Vapour Volume/cm^3g^-1 53 14.29 1.014 10490 54 15.00 1.014 10020 55 15.74 1.015 9577.9Please asapHow much heat is required to raise the temperature of a 225 g lead ball from 15 °C to 25 °C? The specific heat of lead is 128 J/kg · °C. O A) 432 J B) 720 J C) 288 J D) 1152 J
- KIkg, Cwater=4.18 kJ*K/, What will be the final temperature of 40 g of ice at 0 °C mixed with 375 g of water at 88 °C. kJ (Cice= 2.05 kg, Kork/ kg; Lfwater=333.5 K/ kg @ 0 °C, Lywater= 2257 kJIkg Cwater=4.18 kJ*K/, Csteam-2.01 @100 °C) T= °C51) A blacksmith heats a 2.5kg piece of steel of 850 degrees Celisus, then allows it to cool to room temperature (20oC). How much heat is released as it cools? (The specific heat of steel is 466 J/kg.0C) 2) A small brass ring has a mass of 0.02 kg. A scientist measures that 342 J of heat are required to increase it temperature by 45oC. Based on this information, what is the specific heat of brass? Questions 5-7, the following values will be needed: Specific heat of liquid water: 4,186 J/kg.0C Heat of vaporization of water: 226,000 J/kg Boiling point of water: 1000C A tea kettle holds 0.6kg of water at 250C. It is placed on a stove until the water has entirely boiled and tuned to steam 5. How much heat is required to raise the temperature of water to its boiling point 6. How much heat is required to fully vaporize the water? 7. What is the total energy absorbed by the water during this process?
- 26) A 45.0-kg sample of ice is at 0.00° C. How much heat is needed to melt it? For water LF = 334,000 J/kg and Ly=2.256 x 106 J/kg. A) 0.00 kJ B) 1.02 x 105 kJ C) 1.50 × 104 kJ D) 4.10 x 106 kJשפיי יוון 6:58 PM | 18.9KB/s ●●● expert.chegg.com/exă Shur 3w/ Question 3 How much heat is required to convert 25.4 g of liquid water (H2O) at 85°C to steam at 135° C? The specific heat capacity for liquid water is 4.18 1/g "C. for steam is 2.01 J/g-C. and the enthalpy of vaporization is 40.7 kJ/mol. Report your answer in kl.