chemistry
how many joules are required to heat a frozen can of juice (360 grams) from 5C (the temperature of an overcooled refrigerator to 110C) the highest practical temperature within a microwave oven?
asked by
Kelly

This is a long but not difficult problem.
q1 = heat to move solid from 5 to zero C.
q1 = mass x specific heat (I assume you will use that of ice) x 5).
q2 = heat to melt solid.
q2 = mass x heat fusion.
q3 = heat to move liquid from zero to 100.
q3 = mass x specific heat liquid x delta T.
delta T = 100
q4 = heat to vaporize liquid to vapor at 100.
q4 = mass x delta Hvap.
q5 = heat to move steam T from 100 to 110 C.
q5 = mass x specific heat steam x 10
total Q = q1 + q2 + q3 + q4 + q5posted by DrBob222

with sig figs: 1,000,000
posted by kevin
Respond to this Question
Similar Questions

Chemistry
How many joules ar required to heat a frozen can of juice (360 grams) from 5 degrees C (the temp of an overcooled refrigerator) to 110 degrees C (the highest practical temp within a microwave oven)? 
chemistry
A microwave oven heats by radiating food with microwave radiation which is absorbed by the food and converted to heat. Suppose an oven's radiation wavelength is 12.5 cm. A container with 0.250 liter of water was placed in the oven 
chemistry
A microwave oven heats by radiating food with microwave radiation which is absorbed by the food and converted to heat. Suppose an oven's radiation wavelength is 12.5 cm. A container with 0.250 liter of water was placed in the oven 
chemistry
how many joules are required to heat a frozen can of juice (360 grams) from 5 degrees Celsius to 110 degrees celsius 
Chemistry
A particular microwave oven delivers 800 watts. (A watt is a unit of power, which is the joules of energy delivered, or used, per second.) If the oven uses microwave radiation of wavelength 12.2 cm, how many photons of this 
math
A jeweler is heating a gold bar. It takes 7 joules of heat to raise the temperature of the bar 1°C. The initial temperature of the bar is 25°C. Use this information for Items 4–11. 4. Make a table that shows how many joules of 
math,
A jeweler is heating a gold bar. It takes 7 joules of heat to raise the temperature of the bar 1°C. The initial temperature of the bar is 25°C. Use this information for Items 4–11. 4. Make a table that shows how many joules of 
algebra
A jeweler is heating a gold bar. It takes 7 joules of heat to raise the temperature of the bar 1°C. The initial temperature of the bar is 25°C. Use this information for Items 4–11. 4. Make a table that shows how many joules of 
physics
On its highest power setting, a microwave oven increases the temperature of 0.400 kg of spaghetti by 45.0 °C in 120 s. The specific heat of spaghetti is 3760 J/kg °C and the microwaves are absorbed over a circular area 20.0 cm 
physics
What amount of heat is required to raise the temperature of 20 grams of water from 10°C to 30°C? The specific heat of water is 4.18 J/g°C. 1200 joules 1500 joules 1700 joules 1900 joules 2000 joules