Specific heat capacity ; voltage ; heating water

AI Thread Summary
The experiment aims to determine the factors affecting the time required to heat water from 20 to 35 degrees Celsius by using a properly insulated beaker and a heating element. The energy provided to the water is calculated using the formula P = IV, and the specific heat capacity can be derived from the relationship mc(delta temp). The experimenter plans to alter the concentration of salt in the water to observe its effects. It is advised to maintain constant variables to ensure accurate results. Overall, the proposed method is considered viable for the intended experiment.
rishabharora
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Hi,
I am doing an experiment on the factors affecting the time to heat water from a set temperature to another, eg 20 to 35 deg C.
1. First, I have insulated the beaker properly, to minimise heat loss. I have connected a heating element to heat the water. Connected multimeter, give the voltage and current in the circuit. Using this, I can find the energy provided -
P = IV and then P = energy/ time.
Also, this should be equal to mc(delta temp) ; hence i can calculate the specific heat capacity.
I am altering the concentrating by adding salt.
Is this a viable method?? ?
Thanks
 
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For me, this experiment sounds fine. Remember to keep some of the variables to be constant though. Can you tell me all the variables you can think of which must be kept constant?
 
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