Properties Of Solids And Liquids Question 482
Question: The volume of a gas at 20°C is 100 cm3 at normal pressure. If it is heated to 100°C, its volume becomes 125 cm3 at the same pressure, then volume coefficient of the gas at normal pressure is [Pb. PET 2002; DPMT 2001]
Options:
A) 0.0015/°C
B) 0.0045/°C
C) 0.0025/°C
D) 0.0033/°C
Show Answer
Answer:
Correct Answer: D
Solution:
$ \frac{V _{1}}{V _{2}}=\frac{1+\gamma t _{1}}{1+\gamma t _{2}} $
therefore $ \frac{100}{125}=\frac{1+\gamma \times 20}{1+\gamma \times 100} $
therefore g = 0.0033/°C
