PH-767
Latent heat
Physics · Secondary 3 · Hard · Latent heat
A student uses a 250 W immersion heater to boil water. The heater is switched on for 4.0 minutes. If the specific latent heat of vaporisation of water is and all the energy is used for boiling, what mass of water is turned into steam?
- 2.6 × 10⁻² kg
- 9.2 × 10⁻³ kg
- 1.5 × 10⁻¹ kg
- 5.8 × 10⁻¹ kg
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