Answer:
option (c)
Explanation:
nA = 2 nB
VA = VB
PA = PB
By use of ideal gas equation
PV = n RT
Where, P is pressure, V is volume, R is the gas constant.
Here, P, V, R are constant.
nT = Constant
[tex]\frac{T_{A}}{T_{B}}=\frac{n_{B}}{n_{A}}[/tex]
[tex]\frac{T_{A}}{T_{B}}=\frac{n_{B}}{2n_{B}}[/tex]
[tex]T_{A}=\frac{T_{B}}{2}[/tex]