What is meant by saying that the latent heat of fusion of ice is 3.34 × 10⁵ J/kg ?

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Solution

The latent heat of fusion of ice is 3.34 × 10⁵ J/Kg means that 3.34 × 10⁵J of heat is required to change 1 kg of ice into water at its melting point at the same temperature.

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What is meant by saying that the latent heat of vaporisation of water is 22.5 $\times 10^{5}$ J/Kg?

Q. The latent heat of fusion of ice is :
(a) 33.4 × 10⁵ J/kg
(b) 22.5 × 10⁵ J/kg
(c) 33.4 × 10⁴ J/kg
(d) 22.5 × 10⁴ J/kg

Why is the latent heat of fusion of ice i.e 3.34×10⁵J/kg less than the latent heat of vapourisation i.e 22.5×10⁵J/kg? Particles of solids are more tightly packed than liquids so literally the should require more energy for separation than liquids.

Q. The latent heat of vaporisation of water is :
(a) 2.25 × 10⁶ J/kg
(b) 3.34 × 10⁶ J/kg
(c) 22.5 × 10⁴ J/kg
(d) 33.4 × 10⁵ J/kg

Q. What is the amount of heat energy required to convert ice of mass 20 Kg at

- 4^{0} C

to water at

20^{0} C

? Use the relevant option for calculation.
a) Latent heat of fusion of ice 3.34 x

10^{5}

J / Kg.
b) Specific heat capacity of water is 4180 J / Kg / K
c) Specific heat of ice 2093 J / Kg / K

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What is meant by saying that the latent heat of fusion of ice is 3.34 × 105 J/kg ?

The latent heat of fusion of ice is 3.34 × 105 J/Kg means that 3.34 × 105J of heat is required to change 1 kg of ice into water at its melting point at the same temperature.

What is meant by saying that the latent heat of fusion of ice is 3.34 × 10⁵ J/kg ?

The latent heat of fusion of ice is 3.34 × 10⁵ J/Kg means that 3.34 × 10⁵J of heat is required to change 1 kg of ice into water at its melting point at the same temperature.