<HTML><META HTTP-EQUIV="content-type" CONTENT="text/html;charset=utf-8"> <p id="yui_3_17_2_3_1463589225479_1149"><SPAN id="yui_3_17_2_3_1463589225479_1148" itemprop="text">K = 273.15 + C <BR><BR>K = 172 so substitute <BR><BR> 172 = 273.15 + C <BR><BR> C = 172 - 273.15 = -101.15</SPAN> </DIV>