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Highly selective Backlog Qs for JEE MainChemistryThermodynamics (C)

( H_ fusion ) of a substance is ' (x ) ' and ( H_ vap ) is ' (y ) ', then ( H_ sublimation ) will be

Options

  1. A(x+y )
  2. B(x-y )
  3. C(x / y )
  4. D(y / x ).

Correct answer

A. (x+y )

Step-by-step solution

( aligned & Solid fusion Liquid H_ fusion =x & Liquid vaporisation Gas H_ vap =y & Solid sublimation Gas H_ sub & aligned ) So, ( H_ sub = H_ fusion + H_ vap , H_ sub =x+y ).

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