The two specific heat capacities of a gas are measured as Cp = (12.25 – InterviewSolution

1.

The two specific heat capacities of a gas are measured as Cp = (12.25 ± 0.2) units and Cv = (3.97 ± 0.3) units. Find the value of the gas constant R.

Answer»

Gas constant

R = C_p − C_v

= (C_p − C_v) + (ΔC_p − ΔC_v)

= (12.28 – 3.97) ± (0.2 + 0.3)

= (8.31 ± 0.5) units.

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