What is the meant by the statement, 'Latent heat of fusion of ice is 80cal/gm ?

Define latent heat of fusion.

1 kg of ice occupies 1.1xx10^(-3) m^3 at N.T.P. The volume changes to 1xx10 ^(-3)m^3 , when it is melted. internal latent heat is(latent heat of fusion of ice = 80 k cal/kg P= 1.013xx10^5 N/m^2, J= 4200 J/k cal)

What is amount of latent heat of fusion of ice. Why it is so named ?

When 25 gm of ice at - 20^@C have absorbed 2500 cal of heat, what is the temperature of the resulting water? (latent heat of ice = 80 "cal"//(gm) and specific heat of ice = 0.5 "cal"//(gm)//^@C) .

A metal rod 25 cm long and 10sq cm in cross section has it's one end placed in boiling water and the other end in melting ice. Calculate the mass of ice method per minute if K for metal is 378 W/mk. Latent heat of fusion of ice - 80 K cal/gm . J = 4200 j/Kcal.

What is meant by the statement, ''the electric field of a point charge has spherical symmetry, whereas that of an electric dipole is cylindrically symmetric'' ?

What do you understand by the following statements. Latent heat of vaporization of water is 450 cal//gm

Calculate the amount of heat required to convert 10g of ice at - 10^@C to water at 5^@C (latent heat of fusion of ice = 80 cal g^(-1) , specific heat of ice = 0.5).

Explain what is meant by the statement, thermal conductivity of iron 0.2 C G S unit.