Question

A solid X of mass 80 g and at 80°C melts completely to form a liquid at 80°C, by absorbing 720 J of heat energy. The sp. latent heat of fusion of the solid is:

विकल्प

• 9.5 Jg⁻¹

• 8.0 Jg⁻¹

• 8.5 Jg⁻¹

• 9.0 Jg⁻¹

Answer 1

9.0 Jg⁻¹

Explanation:

Specific latent heat (L) = `Q/m`

= `720/80`

= 9.0 Jg⁻¹