

Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Required practical for SHC.docx
Typology: Exams
1 / 2
This page cannot be seen from the preview
Don't miss anything!


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