Determination of the amount of theoretical thermal energy (heat) transferred to 1 litre of water (useful energy output). Please watch the videos before attempting the following. a) What is the specific heat capacity of water? _________________________ b) Calculate the thermal energy (Q) transferred to a litre of water when you are using a domestic kettle to boil the water, given the following equation: and assuming the following: ? = ??∆? Equation 1 Initial Temperature, Ti = 20 °C, Final temperature, Tf = 100 °C, 1 litre of water ≈ 1kg of water. Show all your calculations. _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ c) Comment on the assumptions and approximations that you have made. _____________________________________________________________________
Determination of the amount of theoretical thermal energy (
energy output). Please watch the videos before attempting the following.
a) What is the specific heat capacity of water?
_________________________
b) Calculate the thermal energy (Q) transferred to a litre of water when you are using a domestic kettle to boil the water, given the following equation:
and assuming the following:
? = ??∆?
Equation 1
Initial Temperature, Ti = 20 °C, Final temperature, Tf = 100 °C, 1 litre of water ≈ 1kg of water. Show all your calculations.
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
c) Comment on the assumptions and approximations that you have made. _____________________________________________________________________ _____________________________________________________________________ ______________________________________________________________
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