Question

A heating curve has been plotted for a solid object as shown. if the mass of the object is 200g , then latent heat of vapourisationfor the material of the objects ,is ( power supplied to the object is constant & equal to 1kW): a> 4.5 x 10 6 J/kg b> 4.5 x 10 6 cal/kg c> 4.5 x 10 4 J/kg d> 4.5 x 10 4 cal/kg

Answer 1

Correct answer is C . For more, see the image below

Answer 2

Answer is 4.5 ×10^6 j/kg not 4.5 × 10^4 j/kg which is A option