Physics · Oct / Nov 2016 · Paper 11 · Question 18
5054Melting, boiling and evaporation
A boiling liquid absorbs thermal energy (heat) at a rate of 450 W. The specific latent heat of vaporisation is 2.7 × 10^6 J / kg. How much liquid is vaporised in 9.0 minutes?
- A1.5 g
- B11 g
- C90 g
- D5400 g
As printed in the paper
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Correct answer: C. 90 g
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