In any cyclic process,

As area under $\mathrm{P}-\mathrm{V}$ diagram represent work done by gas in a thermodynamic process, area under temperature $\left(\mathrm{T}\right)$ entropy $\left(\mathrm{S}\right)$ graph represents heat supplied to the thermodynamic system. Consider the following graph

Two moles of an ideal monatomic gas is taken through cycle $ABCA$ as shown. Then select the correct statement$\left(s\right).$ The symbols have their usual meaning

If the indicator diagram for expansion of gas is as shown, the gas

In the given $P-V$ diagram, if temperature at $A$ is $400 K,$ then maximum temperature during the process $AB,$ is_____$K.$