55.40 g Xe 300 K 400 K heat ΔU ΔH ideal gas

55.40 g Xe 300 K 400 K heat ΔU ΔH ideal gas

 

 

Caculate the values of ΔU and ΔH for the heating of

55.40 g of Xenon from 300 K to 400 K.

Assume ideal gas behavior and heat capacities,

Cp and Cv are independent of temperature.

 

Caculate the values of ΔU and ΔH for the heating of

55.40 g of Xenon from 300 K to 400 K.

Assume ideal gas behavior and that the heat capacities

at constant volume and constant pressure

are independent of temperature.

 

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Xe의 몰질량 = 131.29 g/mol 이므로,

55.40 g / (131.29 g/mol) = 0.42197 mol Xe

( 참고 https://ywpop.tistory.com/7738 )

 

 

 

Xe is a monatomic ‘ideal’ gas

---> Cv = (3/2)R and Cp = (5/2)R

( 참고: Cp – Cv = R https://ywpop.tistory.com/23639 )

 

 

 

ΔU = n Cv ΔT

= (0.42197 mol) (3/2) (8.314 J/mol•K) (100 K)

= (0.42197) (3/2) (8.314) (100)

= 526.2 J

 

 

 

ΔH = n Cp ΔT

= (0.42197) (5/2) (8.314) (100)

= 877.1 J

 

 

 

 

[키워드] ΔU = n Cv ΔT 기준문서, ΔH = n Cp ΔT 기준문서, ΔU = Cv ΔT 기준문서, ΔH = Cp ΔT 기준문서, ΔE = n Cv ΔT 기준문서, ΔE = Cv ΔT 기준문서, ΔU = nCvΔT 기준문서, ΔH = nCpΔT 기준문서, ΔU = CvΔT 기준문서, ΔH = CpΔT 기준문서, ΔE = nCvΔT 기준문서, ΔE = CvΔT 기준문서, q w ΔU ΔH 기준문서, q w ΔE ΔH 기준문서