physical science

How long will a 1.2 kW electric kettle take to heat 0.8 kg of water from 20°C to 100°C?

  1. 👍 0
  2. 👎 0
  3. 👁 178
asked by yah
  1. A person decides to loose weight by eating only cold food. A 100 g piece of apple pie yields 1500 kJ of energy when eaten. It its specific heat is 1.7 kJ/kg °C, how much less energy is its energy component at 5°C than at 25°C?

    1. 👍 0
    2. 👎 0
    posted by yah
  2. 3.687 min

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. phy

    An electric kettle contains 1.5 kg of water at 100o C and powered by a 2.0 kW electric element. If the thermostat of the kettle fails to operate, approximately how long will it take for the kettle boil dry? (Take the specific

    asked by christ on January 24, 2013
  2. Physics, science

    An electric kettle contain 1.5kg of water at 100 degree and powered by a 2.0kw electric element. He the thermostat of the kettle falls to operate, approximately how long will the kettle boil dry? (take the specific latent heat of

    asked by Shedrack on April 4, 2014
  3. physics

    How long does it take a 1000W electric kettle to bring 1.0L of water to the boiling point if the initial temperature is 15oc and the kettle is made of 400g of iron? Assume that no heat was lost to the surroundings and that the

    asked by Alemu on December 3, 2009
  4. Physics

    How long does it take a 1000. W electric kettle to bring 1.0L of water to the boiling point if the temperature of the water and the kettle is 15 C? The kettle os made of 0.400kg of iron. Assume that no water is lost to steam, and

    asked by Dorrito on December 8, 2011
  5. Physics

    An electric kettle has a power of 1.2kw. How long will it take to heat 3 kg of water to the from 20¡ãC to 100¡ãC?

    asked by John on March 22, 2016
  6. physics

    how long 1.2kw electric kettle take to heat 0.8kg of water from 20c to 100c?

    asked by Anonymous on April 4, 2013
  7. Physics

    An electric kettle rated accurately at 2.5kw is used to heat 3kg of water from 15% to boiling point it takes 9.5 minute. Then the amount of heat that has been lost is

    asked by Anonymous on April 9, 2017
  8. Chemistry

    I don't know how to do this question, or even start it. Please Help. 2 kg copper kettle (specific heat capacity 0.385j/gC) has .0500 kg of water at 20C. How much heat is needed to raise the temperature of the kettle and content to

    asked by Sandy on November 27, 2014
  9. heat capacity , physics

    if an electric kettle of 5ooW power and water in it,is heated.the temperature change from10-15c for 100 sec.find the heat capacity

    asked by saby on April 11, 2013
  10. English

    I visited the site you recommended to me. I just have a few mor doubts. I included a few more sentences whose vocabulary I'm not sure of. 1) The teacher was annoyed/cross with me for being late BUT she was annoyed/irritated by the

    asked by Mike on March 20, 2011

More Similar Questions