# a question about science

A 10-g piece of copper heated to 50oC would feel hotter in your hand than a 10-g piece of silver also heated to 50oC when holding for same period of time. If the copper and silver can conduct heat equally well,

can anyone tell me why?

( any answer can be simplier and without any formular? )

### 1 個解答

• 子路
Lv 6
1 十年前
最愛解答

Specific heat capacity of Cu = 384.60 J Kg−1 K−1

Specific heat capacity of Ag = 235.01 J mol−1 K−1

(data from wikipedia)

molar heat capacity/molar mass

= specific heat capacity(per unit mass)

by considering E= m c △T

EAg= m △T (235.01 J mol−1 K−1)

ECu = m △T (384.60 J Kg−1 K−1)

= 1.64 EAg

∴ ECu > EAg

i.e. Heat energy released by Cu > heat energy released by Ag

2007-10-03 15:56:34 補充：

specific heat capacity of Cu Agwith constant mass, temperature, rate of heat flow,more heat energy is given out by the Cu Hence you will feel &quot;the Cu is hotter &quot;

2007-10-09 20:49:39 補充：

you must learn the concept of HEAT CAPACITY first

資料來源： me