Q.

If the standard enthalpy of sublimation (Δsub H) of solid CO2, naphthalene, Li and Na are 25.2,73.0,162,108 kJ mol respectively, the order of sublimation of these substances with temperature is

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a

Li>Na>Napthalane>Solid CO2

b

Solid CO2>Na>Napthalane >Li

c

Na>Li>Napthalane>SolidCO2

d

Solid CO2>Napthalane>Na>Li

answer is C.

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