Posted by olive on Tuesday, May 4, 2010 at 9:12pm.
How long would it take a 1 200 W heater to melt 1.00 kg of ice at 12.0°C, assuming all the energy from the heater is absorbed by the ice? (Assume the specific heat of the ice is 2 090 J/kg · °C and the latent heat of fusion of water is 3.33 105 J/kg.)
what formula do you use, the fact it asks for time, throws me off

physics  drwls, Wednesday, May 5, 2010 at 1:55am
Calculate the number of Joules of heat required (Q), using the mass, specific heat of ice, temperature rise and latent heat of fusion.
Q = M[10 C(ice) + Latent heat]
= 1.00[10*2090 + 3.33*10^5]
= 3.54*10^5 J
Then divide that by the heating rate in Watts (J/s) for the answer in seconds.
Answer This Question
Related Questions
 Physics  How long would it take a 1.00 x 10^3 W heating element to melt 2.00kg ...
 Physics  How long would it take a 1.00 x 10^3 W heating element to melt 2.00kg ...
 Physics  How long would it take a 1.00 x 10^3 W heating element to melt 2.00kg ...
 Physics  How long would it take a 1.00 x 10^3 W heating element to melt 2.00kg ...
 physics  Ice of mass 11.0 kg at 0.00° C is placed in an ice chest. The ice ...
 physics  The Weistin Stamford Hotel in Detroit is 228 m tall. Suppose a piece ...
 physics  The formation of condensation on a glass of ice water causes the ice ...
 Physics  If a cup is half full of ice, how long will it take to melt the ice in...
 Physics  Latent heat question: Your car's windshield is covered with a .58 cm ...
 physics  A piece of ice its mass is 2.5 kg and at 0.0 C temperature , it is ...
More Related Questions