Which of the following equations does not correctly represent the first law of thermodynamcis?

Which one of the following equations does not correctly represent the first law of thermodynamics for the given processes involving an ideal gas? (Assume non-expansion work is zero)

Which one of the following equations does not correctly represent the first law of thermodynamics for the given processes involving an ideal gas ? (Assume non-expansion work is zero)

Which one of the following equations does not correctly respresents the first law of thermodynamics for the given process?

Which one of the following equations does not correctly respresents the first law of thermodynamics for the given process?

Which of the following reaction is not correctly represented

Which one of the following equations correctly represent the first law of thermodynamics for the given process occuring in an ideal gas

Which of the following reactions is/are correctly represented