CHEM LAB EXP 9: DETERMINATION OF R THE GAS LAW CONSTANT. EXAM QUESTIONS AND ANSWERS. VERIFIED 2026/2027.

CHEM LAB EXP 9: DETERMINATION OF
R THE GAS LAW CONSTANT. EXAM
QUESTIONS AND ANSWERS. VERIFIED
2026/2027.




Objective : - ANS to understand how well real gases obey ideal gas laws and determine ideal
gas constant R


gases obey ideal gas law under - ANS ordinary conditions ( room temp and atm P)


deviations from ordinary conditions eqn - ANS -van der Waals
(P+ n^2a/V^2)(V-nb)= nRT


van der Waals takes into account - ANS -2 causes for deviation and is applicable over a larger
range of T's and P's than ideal eqn


nb is a correction for - ANS finite volume of moleculesw


n^2a/V^2 takes into account and is a correction for - ANS -takes into acc: intermolecular
attractions
-correction to pressure




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