Slides in Temperature, 17 April 2017
- Calculating temperature using change in thermometric properties
Mark out ice point (0℃) and steam point (100℃) on graph.
Label corresponding coordinates as l_0 and l_100.
Mark an arbitrary length between the two fixed points as l_θ, tracing using a dotted line to get the temperature θ
consider gradient of graph
- from ice to steam point
- from ice to unknown temperature
3. In an unmarked mercury thermometer, the lengths of the mercury thread l_0 and l_100 are 5.0cm and 25.0cm respectively.
What is the temperature θ when l_θ is
(a) 14.0 cm and
Resistance R of a fixed length of wire varies continuously with temperature over a range of values
Compare voltage reading with calibrated values for ice and steam points.
MCQ Qn 2
Section B Qn 1-2
Go through your checklist, and answer this slide's question