The following apparatus was set up to determine the specific heat capacity of an unknown metal. Two holes were made in the metal to place a thermometer and an electric immersion heater. An external circuit was connected to measure the amount of power supplied to the metal cylinder through the immersion heater. Insulated metallic cylindrical block 12V DC source +1/1/1 Thermometer Electric immersion heater The circuit was turned on and the current reading and voltmeter readings were recorded. After a temperature change of 10°C had occurred, the circuit was turned off and the time taken for the 10°C change in temperature to occur was also recorded. The results were recorded below. Results Mass of cylinder (m) = 2.30kg Current supplied to heater (1) = 0.75A Voltage across heater (V) = 11.8V Initial temperature of cylinder (T1) = 26°C Final temperature of cylinder (T₂) = 36°C Time taken (t) = 15 minutes
1-calculate the power output from the heater
2-datermine the amount of energy supplied to the cylinder by the heater
3-calculate the specific heat capacity of of the metal
4-calculate the heat capacity of the metallic cylinder .
