One of the oxidants used with liquid propellants is

Solid fuel used in rockets is a mixture of $Fe_2O_3$ and $Al$ (in ratio $1:2$ by moles). The heat evolved $(kJ)$ per gram of the mixture is $............$. (Nearest integer)
Given: $\Delta H_{f}^{\ominus}(Al_2O_3) = -1700 \ kJ \ mol^{-1}$
$\Delta H_{f}^{\ominus}(Fe_2O_3) = -840 \ kJ \ mol^{-1}$
Molar mass of $Fe$,$Al$ and $O$ are $56$,$27$ and $16 \ g \ mol^{-1}$ respectively.

The propellant in the proposed $PSLV$ rocket of the Indian space programme shall consist of

Which is the relation between the specific impulse ${I_s}$ and the critical temperature ${T_c}$ attained in a rocket blast?

$A$ hybrid rocket propellant uses:

Which fuels are used in thermal plants and fuel cell?