to calibrate a thermometer using the laboratory mercury thermometer as a standard

Question 1

describe the procedure.

Answer 1

place a thermometer and ungraduated thermometer into a beaker of melting ice. Leave till the columns of liquid stop moving. Mark the position of the column on the ungraduated thermometer. remove the ungraduated thermometer and use a ruler to measure the length of the column of liquid. turn on a heat source and repeat this procedure for every 10C increase in temperature

Question 2

name the thermometric property of the thermometer you calibrated.

Answer 2

the length of a column of liquid

Question 3

how was the value of this thermometric property measured

Answer 3

a ruler is used to measure from the base of the thermometer to the top of the column of liquid

Question 4

why is it necessary to have a standard thermometer in the lab?

Answer 4

two different thermometers will disagree at temperatures other than 0c and 100c. to get agreement on temperature we choose a thermometer as giving the true reading of temperature in the lab

Question 5

give two errors

Answer 5

parallax error reading the ruler
raising temperature above 100c
use a sensitive thermometer with a low specific heat capacity