The amount of heat energy required to raise the temperature of 1 g of Helium at NTP, from T1 K to T2 K is :
Answer & explanation
Correct answer: option 2
Number of moles in 1 g He = \(\frac{1}{4}\)
Amount of heat energy required to raise its temperature from T1K to T2K : Q = mc\(\Delta\) T
For monoatomic gas : CV = \(\frac{3}{2}R\)
Q = \((\frac{1}{4}) (\frac{3}{2}R) (T_2 - T_1)\)
= \(\frac{3}{8} N_a k_B (T_2 - T_1)\)