A rapidly spinning paddle wheel raises the temperature of 450 mL of water from 22.8ºC to 25.9ºC. (Hint: to find mass, use the relation between, density, mass and volume) a) The mass of water in grams Answer for part 1 (density of water = 1000 kg/m 3 , also convert volume of water to cubic centimeter 1mL=1cm 3 ). b) The difference in temperature in kelvin Answer for part 2 b) The work (energy) done in this process in joules Answer for part 3 (specific heat of water = 4186 J/kg°C)

A rapidly spinning paddle wheel raises the temperature of 450 mL of water from 22.8ºC to 25.9ºC.  (Hint: to find mass, use the relation between, density, mass and volume) 

a) The mass of water in grams

Answer for part 1

(density of water = 1000 kg/m3, also convert volume of water to cubic centimeter 1mL=1cm3).

 

b) The difference in temperature in kelvin

Answer for part 2

 

b) The work (energy) done in this process in joules 

Answer for part 3

(specific heat of water = 4186 J/kg°C)