Required practical for SHC.docx, Exams of Nursing

Required practical for SHC.docx

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2025/2026

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Required practical for SHC
Specific heat capacity definition - correct answer
Amount of energy required to raise the temp of 1kg of a substance by 1 degree.
we are working the specific heat capacity of - correct answer
vegetable oil
We start by adding a beaker on a balance and press - correct answer
zero button
Now we add our oil to the beaker and record the - correct answer
mass of the oil from the balance
we then place a thermometer and an - correct answer
immersion heater into the oil
next we read the starting temperature of - correct answer
the oil
Then we wrap the beaker in - correct answer
insulating foam to reduce the thermal energy transfer to the surroundings
we then connect a - correct answer joulemeter to the
immersion heater
joulmeter tells us how many joules of electrical energy pass into the immersion
heater
We then leave this set up for around - correct answer
3o minutes allowing the temp to rise enough so we can read the thermometer
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Required practical for SHC

Specific heat capacity definition - correct answer Amount of energy required to raise the temp of 1kg of a substance by 1 degree. we are working the specific heat capacity of - correct answer vegetable oil We start by adding a beaker on a balance and press - correct answer zero button Now we add our oil to the beaker and record the - correct answer mass of the oil from the balance we then place a thermometer and an - correct answer immersion heater into the oil next we read the starting temperature of - correct answer the oil Then we wrap the beaker in - correct answer insulating foam to reduce the thermal energy transfer to the surroundings we then connect a - correct answer joulemeter to the immersion heater joulmeter tells us how many joules of electrical energy pass into the immersion heater We then leave this set up for around - correct answer 3o minutes allowing the temp to rise enough so we can read the thermometer

next we read the total number of - correct answer joules of energy that passed into the immersion heater and the final temperature specific heat capacity formula - correct answer q=mc∆T why may the specific heat capacity that we get not be accurate (reason 1) - correct answer Thermal energy passing out the beaker into the air How could we prevent this from occurring - correct answer use an insulator with a lower thermal conductivity why may the specific heat capacity that we get not be accurate (reason 2) - correct answer Not all of the thermal energy passing through How could we prevent this from occurring - correct answer ensure the immersion heater is fully submerged why may the specific heat capacity that we get not be accurate (reason 3) - correct answer Incorrect reading of thermometer How could we prevent this from occurring - correct answer use an electronic temperature probe why may the specific heat capacity that we get not be accurate (reason 4) - correct answer Thermal energy not being spread through oil How could we prevent this from occurring - correct answer stir the oil