The pronunciation of the "t" in this case is a result of liaison, not enchaînement. Enchaînement has to do with the syllabification of French phrases, e.g. "sei

The pronunciation of the "t" in this case is a result of liaison, not enchaînement. Enchaînement has to do with the syllabification of French phrases, e.g. "seize heures" is pronounced like "sê zeur," "moving" the word-final "z" to the start of the following vowel-inital word.