KVPY2017PhysicsThermal Properties of Matter
Two different liquids of same mass are kept in two identical vessels, which are placed in a freezer that extracts heat from them at the same rate causing each liquid to transform into a solid. The schematic figure below shows the temperature T vs time t plot for the two materials. We denote the specific heat of metrials in the liquid (solid) states to be C _ L 1 ( C _ S 1 ) and C _ L 2 ( C _ S 2 ) respectively.
Options
- AC_ L 1 < C_ L 2 and C_ S 1 < C_ S 2
- BC _ L 1 > C _ L 2 and C _ S 1 > C _ S 2
- CC _ L 1 > C _ L 2 and C _ S 1 > C _ S 2
- DC_ L 1 C _ S 2
Correct answer
B. C _ L 1 > C _ L 2 and C _ S 1 > C _ S 2
Step-by-step solution
Let Refrigerater extract Q joul/per second Q.t m s (T_ f -T ) Higher the specific heat, Higher the slope