Question

1) An aluminum calorimeter of mass 58 g, has 155 g water, both at a temperature of 21°C. A 108-g piece of metal originally kept in boiling water (T = 100°C) is transferred to the calorimeter. The final equilibrium temperature of the mixture is 26.6°C. Calculate the specific heat of the metal (in J/kg). Specific Heats: Al = 900 J/kg, water =4186 J/g

Question 6 1 pts An aluminum calorimeter of mass 58 g, has 155 g water, both at a temperature of 21°C. A 108-g piece of metal originally kept in boiling water (T 100°C) is transferred to the calorimeter. The final equilibrium temperature of the mixture is 26.6°C. Calculate the specific heat of the metal (in J/kg). Specific Heats: Al-900 J/kg, water-4186 J/g DQuestion 7 1 pts How much heat, in kilo-joules, is required to convert 19 g of ice at -13°C into steam at 121°C, all at atmospheric pressure? (Lice-333 J/g, Lsteam-2.26 x 103 J/g, Cice -2.090 J/g, Cwater 4.186 J/g, Csteam-2.010 J/g)

2) How much heat, in kilo-joules, is required to convert 19 g of ice at -13°C into steam at 121°C, all at atmospheric pressure? (L_ice = 333 J/g,   L_steam = 2.26 ´ 10³ J/g,    c_ice = 2.090 J/g, c_water = 4.186 J/g, c_steam = 2.010 J/g).

Answer 1

PAGE Hi = 58 His ISS al ten - 1o wen 2. 186 3 Heat ulesd