What is the specific heat capacity of styrofoam?

Answer 1

We need to remember that Styrofoam is a brand name.
It is actually a chemical compound polystyrene. Various values of its specific heat capacity are found. These are listed below.

#" " (cal//g °C) " "(J//kg K)# Styrofoam #" "0.27 " "1131# Reference 1.

#" "(J.mol^-1.K^-1)# Polystyrene#" " 126.5 ± 0.6# Reference 2.

The molar weight of the polystyrene taken as #104.15 g# With this the recommended value of Polystyrene comes to #approx1215(J//kg K)#

Depending on the level of accuracy required, one could use any of the values above; however, I would personally use the value provided for Polystyrene under Reference 2.

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Answer 2

Isabella Alvarez

The specific heat capacity of styrofoam is approximately 0.33 - 0.35 J/g°C.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.