Specific Weight
If the universal gas constant, R, is 8.314 kPa(m^3)/(kmol∙K), determine the specific gas constant for a gas that has a molecular weight of 40.
Expand Hint
$$$R_{i}=\frac{\bar{R}}{(mol.wt_i)}$$$
where
$$\bar R$$
is the universal gas constant.
Hint 2
The units for a specific gas constant are in
$$\frac{J}{kg\cdot K}$$
.
R is specific to each gas, but can be calculated from:
$$$R_{i}=\frac{\bar{R}}{(mol.wt_i)}$$$
where
$$\bar R$$
is the universal gas constant.
$$$R_{specific}=\frac{8.314kPa(m^3)}{40(kmol\cdot K)}$$$
$$$R_{specific}=0.208\:\frac{kJ}{kg\cdot K}$$$
0.208
$$kJ/kg\cdot K$$
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