How much time will it take to heat water

AI Thread Summary
To calculate the time required to heat 10 liters of water from 20°C to 80°C using a 2 kW power source, the specific heat capacity of water (c) is needed, which is typically 4.186 J/g°C. The heat energy (Q) can be calculated using the formula Q = m x c x ΔT, where m is the mass of the water. After determining Q, the time (t) can be found using the equation t = Q / Power. The discussion emphasizes the importance of knowing the specific heat capacity to solve the problem effectively.
cycrups
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Homework Statement


T1= 20C
T2=80C
Power=2kW
Volume= 10liters

Homework Equations


Q= Power x time
Q= m x c x DELTA Temp

The Attempt at a Solution



Do I need another equation to be able to find the heat? Since I have the equation of the heat I have the mass and I have the temperature but the c I don't have it.
I then can use the Q/P = t, to find t. What's the c exactly?
 
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You have been given the heat capacity of water in some context previously have you not?
 

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