The specific heat of helium at constant volume is 12.6 J mol-1 K-1 .The specific heat of helium at constant pressure in Jmol-1K-1 is about (Assume the temperature of the gas is moderate, universal gas constant, R = 8.314 J mol-1K-1 )

Question

The specific heat of helium at constant volume is 12.6 J mol-1 K-1 .The specific heat of helium at constant pressure in Jmol-1K-1 is about (Assume the temperature of the gas is moderate, universal gas constant, R = 8.314 J mol-1K-1 ) (A) 12.6 (B) 16.8 (C) 18.9 (D) 21

Tardigrade Admin · Accepted Answer

Given, CV=12.6 J mol -1 K -1 R=8314 J mol -1 K -1 The specific heat of helium at constant pressure, Cp=CV+R=12.6+8.314=21

Q. The specific heat of helium at constant volume is $12.6 J m o l^{- 1} K^{- 1}$ .The specific heat of helium at constant pressure in $J m o l^{- 1} K^{- 1}$ is about (Assume the temperature of the gas is moderate, universal gas constant, $R = 8.314 J m o l^{- 1} K^{- 1}$ )

12.6

16.8

18.9

21

Given,
$C_{V} = 12.6 J m o l^{- 1} K^{- 1}$
$R = 8314 J m o l^{- 1} K^{- 1}$
The specific heat of helium at constant pressure,
$C_{p} = C_{V} + R = 12.6 + 8.314 = 21$

Q. The specific heat of helium at constant volume is 12.6Jmol−1K−1 .The specific heat of helium at constant pressure in Jmol−1K−1 is about (Assume the temperature of the gas is moderate, universal gas constant, R=8.314Jmol−1K−1 )

12.6

16.8

18.9

21

Given, CV​=12.6Jmol−1K−1 R=8314Jmol−1K−1 The specific heat of helium at constant pressure, Cp​=CV​+R=12.6+8.314=21

Q. The specific heat of helium at constant volume is $12.6 J m o l^{- 1} K^{- 1}$ .The specific heat of helium at constant pressure in $J m o l^{- 1} K^{- 1}$ is about (Assume the temperature of the gas is moderate, universal gas constant, $R = 8.314 J m o l^{- 1} K^{- 1}$ )

Given,
$C_{V} = 12.6 J m o l^{- 1} K^{- 1}$
$R = 8314 J m o l^{- 1} K^{- 1}$
The specific heat of helium at constant pressure,
$C_{p} = C_{V} + R = 12.6 + 8.314 = 21$