PH-776

Latent heat

Physics · Secondary 3 · Hard · Latent heat

A student uses a 600 W hot-plate to boil water. In 4.0 minutes, 50 g of water is converted completely to steam. Assuming no heat loss, what is the specific latent heat of vaporisation of water in

\text{J g}^{-1}

720 $\text{J g}^{-1}$
1440 $\text{J g}^{-1}$
2880 $\text{J g}^{-1}$
5760 $\text{J g}^{-1}$

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