1.

If 1 kg of water at its normal boiling point forms 1.671 m3 of steam, the external latent heat of vaporization of water is about (J = 4200nJ/kcal)?

A. 400 kcal/kg
B. 40 kcal/kg
C. 4 kcal/kg
D. 40 cal/kg
Answer» C. 4 kcal/kg


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