14.1 – Determining the Specific Heat Capacity of a Liquid (Leaving Cert Physics): Quizzes
📚Quizzes
Practise the questions
23 questions from this quiz
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Practise the questions
23 questions from this quiz
What device is used to measure electrical energy in this experiment?
What device is used to measure electrical energy in this experiment?
Joulemeter
Why is a copper calorimeter used in this experiment?
Why is a copper calorimeter used in this experiment?
Low specific heat capacity
What precision must the thermometer have?
What precision must the thermometer have?
0.1°C
Why must the heating coil be completely immersed in water?
Why must the heating coil be completely immersed in water?
Prevent burning and ensure even heating
What temperature rise is recommended during the heating phase?
What temperature rise is recommended during the heating phase?
Approximately 15°C
Why must the water be stirred continuously during heating?
Why must the water be stirred continuously during heating?
Ensure uniform temperature
What should be done before measuring initial temperature?
What should be done before measuring initial temperature?
Allow system to reach thermal equilibrium
In the energy equation , what is ?
In the energy equation , what is ?
Electrical energy from joulemeter
What is the most significant error in this experiment?
What is the most significant error in this experiment?
Heat loss to surroundings
How does heat loss affect the calculated specific heat capacity?
How does heat loss affect the calculated specific heat capacity?
Makes it too high
Which method reduces heat loss by radiation?
Which method reduces heat loss by radiation?
Use a polished calorimeter
Why pre-cool water to about 7°C below room temperature?
Why pre-cool water to about 7°C below room temperature?
Compensate for heat flowing in early
Why must the calorimeter's mass be measured?
Why must the calorimeter's mass be measured?
It also gains heat during experiment
What is the purpose of this experiment?
What is the purpose of this experiment?
Find specific heat capacity of water
What instrument measures the electrical energy supplied in this experiment?
What instrument measures the electrical energy supplied in this experiment?
Joulemeter
Why is a copper calorimeter used in this experiment?
Why is a copper calorimeter used in this experiment?
Copper has low specific heat capacity
Why must the water be stirred continuously during heating?
Why must the water be stirred continuously during heating?
Ensures uniform temperature throughout
Why must the heating coil be completely immersed in water?
Why must the heating coil be completely immersed in water?
Prevent burning & ensure even heating
What is the approximate temperature rise used in this experiment?
What is the approximate temperature rise used in this experiment?
What is the major source of error in this experiment?
What is the major source of error in this experiment?
Heat loss to surroundings
How does heat loss affect the calculated specific heat capacity value?
How does heat loss affect the calculated specific heat capacity value?
Makes it too high
Why must the mass of the calorimeter be measured?
Why must the mass of the calorimeter be measured?
The calorimeter also gains heat
