8. What mass of water would need to evaporate from your skin inorder to dissipate 1.7 ´ 105 J of heat from yourbody? (H2O(l) ® H2O(g)DHvap = 40.7 kJ/mol; H2O = 18.01g/mol)
A. 7.52 x 104 g
B. 418 g
C. 75.3 g
D. 58.4 g
E. 6.92 x 106 g
8. What mass of water would need to evaporate from your skin inorder to dissipate 1.7...
5) How much heat is required to warm 1.50 L of water from 25.0 °C to 100 °C? (Density of water = 1,0 g/mL for the water; Cs of water 4.18 J/g oC). Evaporating sweat cools the body because evaporation is an endothermic process which can be expressed using the following reaction: H20 (g) AHOxn +44.01 kJ H2O (I) Estimate the mass of water that must evaporate from the skin to cool the body by 0.5 °C. Assume a body...
What are the primary products in the complete combustion of a hydrocarbon? O CO and H2O O H2O and CO2 H2 and O2 O Cand H2 What is the kinetic energy of a single He atom traveling at 2.0 x 104 m/s? 1.3 x 10-18 2.6 x 10-18) O 6.4 x 10-18 O 7.7 x 10-18 ] An iron piston in a compressor has a mass of 3.62 kg. If the specific heat of iron is 0.449 J/g°C, how much...
3How much heat is required to raise the temperature of 1.5x 103 g of water from 45°F to 130.°F? The specific heat of water is 4.184 J/g °C. 3.0x101 kJ 5.3x102 kJ 3.0x102 kJ 3.4x102 kJ 8.2x102 kJ6When 0.7521 g of benzoic acid was burned in a calorimeter containing 1,000. g of water, a temperature rise of 3.60°C was observed. What is the heat capacity of the bomb calorimeter, excluding the water? The heat of combustion of benzoic acid is -26.42 kJ/g. 15.87 kJ/℃ 752.1 kJ/C 1.34 kJ/°C 5.52...
30. How much heat energy, in joules, is required to raise the temperature of 1 mole of sulfur from 100. to 500.°C? Specific heat for sulfur is 0.705 J/g-°C. a. 280 b. 1.28 X 104 c. 9.04 X 103 d. 22.6 e. 567 31. What is the final temperature, in °C, when 60.0 g of water at 80°C is mixed with 40.0 g of water at 25°C? The specific heat of water is 4.184 J/g-°C. a. 53 b. 58 c....
What mass of ice would it take to lower the temperature of 0.5kg of water from 20°C to 0°C. 7. A 100-g piece of iron is heated to 100°C and then dropped into a cavity in a large block of ice at 0°C. How much mass of ice will melt? 8. 50 grams of hot water at 80°C is poured into a cavity in a very large block of ice at 0°C. The final temperature of the water in the...
Enthalpy of Hydration: Data Sheet Show all your work clearly and include appropriate units A: Dissolution of Anhydrous Sodium Acetate Name . 8142 lo g . 235 11-35 aa.3 Mass of water Mass of NaC,H302 Mass of solution Room Temperature Final Temperature Specific heat capacity of the solution 4.18VeC Calculations for q soution q solution d reaction B. Dissolution of Sodium Acetate Trihydrate cigh bot 1.412 Mass of water Mass of NaC2H3O 3H2O Mass of solution Room Temperature Final Te...