Properties Of Solids And Liquids Question 485
Question: Coefficient of real expansion of mercury is 0.18 ´ 10?3/°C. If the density of mercury at 0°C is 13.6 gm/cc. its density at 473K is [DPMT 1996]
Options:
A) 13.11 gm/cc
B) 26.22 gm/cc
C) 52.11 gm/cc
D) None of these
Show Answer
Answer:
Correct Answer: A
Solution:
$ \rho ={\rho _{0}}(1-\gamma .\Delta \theta )=13.6[1-0.18\times {{10}^{-3}}(473-273)] $
$ =13.6[1-0.036]=13.11gm/cc $ .
