Multiple choice

Consider the following statements:

(1) Steam causes more severe burns than boiling water due to latent heat of vapourisation. (2) The combination of low specific heat and high thermal conductivity is the most desirable for a cooking pot.

Which of the given statements is/are correct?

  1. Only (1)

  2. Only (2)

  3. Both (1) and (2)

  4. Neither (1) nor (2)

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement (1) is correct. Steam contains more heat than the same amount of water at the same temperature. When steam condenses, it gives out this extra latent heat and causes severe burns. Statement (2) is correct. The combination of low specific heat (requires less temperature to react) and high thermal conductivity (rapid transfer of heat) is the most desirable for a cooking pot.