An endothermic reaction is one in which

An ideal gas at $300 \, K$ expands from a volume of $1 \times 10^{-3} \, m^3$ to $1 \times 10^{-2} \, m^3$ against a constant external pressure of $1 \times 10^5 \, N \, m^{-2}$. Calculate the work done.

For an ideal gas,the heat of reaction at constant pressure and constant volume are related as:

In an endothermic reaction,the value of the change in enthalpy $(\Delta H)$ is

How does a thermal power plant work?

The energy diagram for a reaction $R \to P$ is shown below. The $\Delta H^o$ for the reaction will be: