下表是硝酸钾和氯化钠在不同温度时的溶解度。根据此表回答：                                                                                                                                                                                       

温度/℃		0	20	40	60	80
溶解度/g		13.3	31.6	63.9	110	169
	NaCl	35.7	36.0	36.6	37.3	38.4