When Solid Ammonium Nitrate (NH₄NO₃) Dissolves in Water, the Temperature $\Delta$

question 55

Multiple Choice

When solid ammonium nitrate (NH₄NO₃) dissolves in water, the temperature of the water can drop dramatically.Taking NH₄NO₃ as the system, predict the signs of the entropy change of the system ( $\Delta$ S_sys) and surroundings ( $\Delta$ S_surr) .

• A)(\(\Delta\)S_sys is less than 0 and \(\Delta\)S_surr is less than 0.)
• B)(\(\Delta\)S_sys is less than 0 and \(\Delta\)S_surr is greater than 0.)
• C)(\(\Delta\)S_sys is greater than 0 and \(\Delta\)S_surr is less than 0.)
• D)(\(\Delta\)S_sys is greater than 0 and \(\Delta\)S_surr is greater than 0.)
• E)(\(\Delta\)S_sys equals 0 and \(\Delta\)S_surr is less than 0.)

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