What is the heat capacity of Cadmium Sulfide (CdS) at low temperatures
of about 6 Kelvin?

---

Request for Question Clarification by supermacman-ga on 02 Aug 2003 00:12 PDT

Hello dkulik,

I have found a source that provides the *specific* heat capacity for
cadmium sulfide (solid). It does not specifically refer to the
compound at 6 K, but from my knowledge, heat capacities do not vary by
temperature, as long as the same phase is maintained (i.e. gas,
liquid, solid).

Would this be a satisfactory answer?

---

Clarification of Question by dkulik-ga on 02 Aug 2003 06:09 PDT

Hello supermacman,

Thank you for attention to my question.  
I have found a few sources of information on heat capacity of CdS in
the temperature range between 200K - 300K. It does very with
temperature even in this temperature range. So, we cannot assume that
at 6 Kelvin the heat capacity is the same as it is at the room
temperature.
I would expect an answer with a reference to a source of information
where it is explicitly stated what is the heat capacity of CdS at low
temperatures.

---

Clarification of Question by dkulik-ga on 02 Aug 2003 06:21 PDT

For example, here is a basic discussion of change of heat capacities
with temperature:
http://www.chembio.uoguelph.ca/educmat/chm386/rudiment/tourexp/heatcap.htm

---

Request for Question Clarification by supermacman-ga on 02 Aug 2003 10:09 PDT

Ah! A much more complicated question. I will have to pass on this question.

The (only) source I had found gave the specific heat as 0.47 J/(g*K).

http://www.issp.ac.ru/lpcbc/DANDP/cds_adv.html

Search strategy
"specific heat" "cadmium sulfide"

---

Clarification of Question by dkulik-ga on 02 Aug 2003 11:22 PDT

Thanks, I have seen that before. Unfortunately they do not specify the temperature.