which specific heat capacity provided would require most energy to increase temp by 1 degree c

Question

A-1.0 O2(g)(cs=0.198 j/g degree C)

B-1.0 CO2(g)(cs=0.853 J/g degree C)

C-1.0g Si(s)(0.712 j/g degree C)

D-1.0Fe(s)(cs=0.449 j/g degree C)

E-1.0gAr(g)(Cs=0.522 j/g degree C)

Answer 1

Hello, Lu,

I'll assume that all of the substances are in 1 gram quantities. Since all the specific heats are expressed in units of 1 gram, we can simply compare them as written. The specif heat is the amount of energy (in Joules) required to raise the temperature of one gram of the material by 1 degree C. (Unit is J/g^oC).

According to the figures listed, CO₂ would win the title.

Bob