Page 142 - แผนการสอน 63-2
P. 142

7



                    3.   น้ า 500 กรัม ร้อนขึ้นจาก 5 ◦C   เป็น 75 ◦C  จงค านวณปริมาณความร้อนที่น้ าดูดกลืนเข้าไป

                        ก าหนดให้ความร้อนจ าเพาะของน้ า = 4.184 J/g
                          .........................................................................................................................................................
                          .........................................................................................................................................................
                          .........................................................................................................................................................

                          .........................................................................................................................................................
                          .........................................................................................................................................................
                          .........................................................................................................................................................

                          .........................................................................................................................................................
                          .........................................................................................................................................................
                          .........................................................................................................................................................
   137   138   139   140   141   142   143   144   145   146   147