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Moderate

Endothermic Dissolution

APCHEM-VEEILL

The dissolution of ammonium nitrate in water is endothermic.

Despite the endothermic nature, the dissolution of the ionic solid in water is spontaneous as supported by which of the following?

A

The reaction has a relatively small positive entropy change that must be coupled with a cooler temperature.

B

The reaction has a relatively large positive entropy change that must be coupled with a warmer temperature.

C

The reaction has a relatively small negative entropy change that must be coupled with a warmer temperature.

D

The reaction has a relatively large negative entropy change that must be coupled with a cooler temperature.