# Specific heat capacity

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• Created by: aleena147
• Created on: 30-10-19 18:18
• specific heat capacity
• the specific heat capacity of a substance is the change in energy in the substances thermal store needed to raise the temp of 1kg of that substance by 1 degrees
• change in thermal energy=mass*specific heat capacity*change in temp
• heating a substance increases the energy in its thermal store
• in kinetic theory, temp is a way of measuring the average internal energy of a substance
• practical
• 1. measure the mass of substance by using a weighing scale
• 2. set up apparatus. make sure joule meter reads zero.
• 3. measure the temp of the substance your investigating, then turn on the power
• 4. when temp has increased by 10 degrees on the thermometer, stop the experiment and record the energy on the joulemeter.
• 5. calculate specific heat capacity using formula
• 6. repeat whole experiment three times and calculate a mean
• tips
• watch out for systemic errors due to energy escaping from your experiment
• insulating container helps by reducing energy that escapes from the side and the bottom of the substance your investigating