Question

the density of a liquid at hundred degree celsius is 8 gram per centimetre cube and at zero degree celsius is 8.4 gram per centimetre cube the coefficient of cubical expansion of the liquid is​

Answer 1

Answer:

Explanation:

Use the formula of volumetric thermal expansion ,

V = V₀(1 + 3α × ∆T) [ because , Y = 3α

we know, density = mass/Volume ,

because mass can't be change if temperature change .

so, formula of thermal expansion for density,

d = d₀((1 + 3α × ∆T)

9.7 = 10/[1 + 3α × ( 100 - 0)]

9.7 = 10/[1 + 300α]

9.7 + 2910α = 10

2910α = 0.3 => α = 0.00010309

α = 1.0309 × 10^-4 /°C