SATHEE: Properties Of Solids And Liquids Question 484

Properties Of Solids And Liquids Question 484

Question: Density of substance at 0°C is 10 gm/cc and at 100°C, its density is 9.7 gm/cc. The coefficient of linear expansion of the substance will be [BHU 1996; Pb. PMT 1999; DPMT 1998, 2003]

Options:

A) 102

B) 10?2

C) 10?3

D) 10?4

Show Answer

Answer:

Correct Answer: D

Solution:

Coefficient of volume expansion $γ = \frac{Δ ρ}{ρ . Δ T} = \frac{(ρ_{1} - ρ_{2})}{ρ . (Δ θ)} = \frac{(10 - 9.7)}{10 \times (100 - 0)} = 3 \times 10^{- 4}$

Hence, coefficient of linear expansion $α = \frac{γ}{3} = 10^{- 4} /^{\circ} C$

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Properties Of Solids And Liquids Question 484

Question: Density of substance at 0°C is 10 gm/cc and at 100°C, its density is 9.7 gm/cc. The coefficient of linear expansion of the substance will be [BHU 1996; Pb. PMT 1999; DPMT 1998, 2003]

Options:

Answer:

Solution:

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