Answer to Question #206656 in Molecular Physics | Thermodynamics for Yomna

Question #206656

A rigid cylinder containing 0.01 m3 of carbon dioxide at 1 bar and 300 K 

is heated until temperature becomes 400 K. Determine: The heat 

supplied.


1
Expert's answer
2021-06-15T17:00:16-0400

Gives

Volume (V)=0.01m3m^3

Pressure (P)=1bar=100Kpascal

∆T=(T2-T1)=400-300=100K

R=4.1240Kpa m3/Kg-K

cv=37.35KJ/kgKc_v=37.35KJ/kg-K

m=P1VRT1m=\frac{P_1V}{RT_1}

Put value


m=100kpa×102m24.12kpam3kgK×300K=8.09×104kgm=\frac{100kpa \times 10^{-2}m^2}{4.12 \frac{kpa m^3}{kg-K }\times300 K}=8.09\times10^{-4} kg

heat transfer

Q=mcvTQ=mc_v∆T



Q=8.09×104×37.35×100=3.02JQ=8.09\times10^{-4} \times37.35\times100=3.02J


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