When $50 \ g$ of iron is dissolved in $HCl$ at $25 \ ^\circ C$ in a closed vessel,the work done is calculated to be ..... . The atmospheric pressure is $1 \ atm$. (in $J$)

Which of the following statements is not correct?

Which among the following properties is $NOT$ a state function?

For a substance,the molar heat capacity at constant $P$ is given by:

Which of the following reactions shows work of compression?

Consider the following statements:
$(1)$ Joule-Thomson experiment is isoenthalpic as well as adiabatic.
$(2)$ $A$ negative value of $\mu_{JT}$ (Joule-Thomson coefficient) corresponds to warming of a gas on expansion.
$(3)$ The temperature at which neither cooling nor heating effect is observed is known as inversion temperature.
Which of the above statements are correct?