Solve] Time to Boil 1.1 kg Water with 1500 W

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SUMMARY

The discussion focuses on calculating the time required to boil away 1.1 kg of water using a stove burner that supplies heat at a rate of 1500 W. The relevant equation for this calculation is q = mct, where 'q' represents the heat energy, 'm' is the mass of the water, 'c' is the specific heat capacity, and 't' is the time. To determine the total energy needed, participants emphasize the importance of looking up the latent heat of water, which is essential for converting water at 100°C into steam. The relationship between power, energy, and time is also highlighted as crucial for solving the problem.

PREREQUISITES
  • Understanding of the equation q = mct for heat transfer calculations
  • Knowledge of the latent heat of water for phase changes
  • Familiarity with the concepts of power, energy, and time relationships
  • Basic principles of thermodynamics related to boiling and phase changes
NEXT STEPS
  • Research the latent heat of vaporization for water
  • Learn how to apply the equation P = E/t in practical scenarios
  • Explore specific heat capacities of various substances
  • Study thermodynamic principles related to heat transfer and phase changes
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Students studying physics, particularly those focusing on thermodynamics, as well as educators looking for practical examples of heat transfer calculations.

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Homework Statement


A stove burner supplies heat to a pan at the rate of 1500 W. How
long will it take to boil away 1.1 kg of water, once the water
reaches its boiling point?


Homework Equations


q = mct


The Attempt at a Solution



heat transfer = 1500 W, m = 1.1 KG Tf = 100
[
 
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Look up latent "heat of water". That will allow you to calculate the amount of energy needed to turn 1.1kg of water at 100C into steam at 100C.

Then remember the equation that relates Power, Energy and Time.
 

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