Heat needed to melt 1 kg of ice at its melting point is-A- 40 JB- 3-35 - 105 JC- 80 JD- 800 J

The correct option is B 3.35 × 10^5 JHeat needed to melt 1 kg of ice is Heat = mass × latent heat. (Latent heat of ice is 333.55 kJ/kg) Heat = 1×333.55 = 3.35 ...

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Standard VII

Chemistry

Latent Heat of Vaporisation

Heat needed t...

Question

Heat needed to melt $1 k g$ of ice at its melting point is:

40 J

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3.35 \times 10^{5}

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80 J

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800 J

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Solution

The correct option is B $3.35 \times 10^{5}$ J
Heat needed to melt $1 k g$ of ice is
Heat = mass $\times$ latent heat.
(Latent heat of ice is 333.55 kJ/kg)
Heat = $1 \times 333.55 = 3.35 \times 10^{5} J$

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Heat needed to melt 1 kg of ice at its melting point is:

The correct option is B 3.35×105 JHeat needed to melt 1 kg of ice is Heat = mass × latent heat. (Latent heat of ice is 333.55 kJ/kg) Heat = 1×333.55=3.35×105 J

Heat needed to melt $1 k g$ of ice at its melting point is:

The correct option is B $3.35 \times 10^{5}$ J
Heat needed to melt $1 k g$ of ice is
Heat = mass $\times$ latent heat.
(Latent heat of ice is 333.55 kJ/kg)
Heat = $1 \times 333.55 = 3.35 \times 10^{5} J$