writing a lab report for physical chemistry lab. " speed of sound in different gases"

Table 1. Experimental results and analysis

	Temp.	Speed and error(m/s) a	& error-Idealb	& error-VdWc	Cv&error-ideald
He
N2
CO2
CO2
CO2

a) Error given for a ??? % confidence level

b) Determined assuming an Ideal gas model.

c) Determined assuming a van der Waals gas model.

d) Determined assuming Ideal gas model for and Cv=Cp-R.

Table 2. Comparison with theory and literature

	Temp.	Cv
He		Obs. & error a	Theory-Eq. b	Theory-Eq. c	Theory-Stat. d	Lit.e
N2
CO2
CO2
CO2

a) Determined assuming Ideal gas model for and Cv=Cp-R.

b) Calculated assuming using the equipartition theorem including vibrations.

c) Calculated assuming using the equipartition theorem excluding vibrations.

d) Calculated assuming using the Statistical thermodynamics theory.

e) Literature values. From ref. # ????