The amount of heat energy required to raise the temperature of 1g of Helium at NTP, from T1 K to T2 K is:
Given, that the mass of the helium sample= 1 gram
Molecular mass of helium = 4 gram
Number of moles of helium (n)=
Change in temperature (ΔT)= (T2 – T1)
Cv = (3/2)R
Cv = Specific heat at constant volume
The amount of heat energy required (ΔQ) = nCvΔT
The amount of heat energy required (ΔQ) =
The amount of heat energy required (ΔQ) =
Here, R = NAkB
where kB is Boltzmann constant and NA is Avogadro’s number
Hence, Option (A) is correct.