Question

When 1 g of water at 0° C and 1 x 10⁵ N/m² pressure is converted into ice of volume 1.082 cm³, the external work done will be ____________.

विकल्प

• 0.0082 J

• 0.0182 J

• - 0.0082 J

• - 0.0182 J

Answer 1

When 1 g of water at 0° C and 1 x 10⁵ N/m² pressure is converted into ice of volume 1.082 cm³, the external work done will be 0.0082 J.

Explanation:

Work done = P(V₂ - V₁)

Now, as density of water= 1 g/cm^3`

`therefore "V"_1 = 1  "cm"^3 = 10^-6  "m"^3`

`therefore "W" = 1 xx 10^5 xx (1.082 - 1) xx 10^-6 = 0.0082  "J"`