First Law Of Thermodynamics - Practice Questions & MCQ

Which of the following is incorrect regarding the first law of thermodynamics?

In a given process of an ideal gas dW=0 and dQ<0. Then for the gas

An ideal gas is taken via path as shown in figure. The net work done in the whole cycle is

The correct 1st law equation for the isothermal process will be

A total of $48 \mathrm{~J}$ heat is given to one mole of helium kept in a cylinder. The temperature of helium increases by $2^{\circ} \mathrm{C}$. The work done by the gas is : (Given, $\mathrm{R}=8.3 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$.)

Direction:  In the following question, a statement of Assertion (A)  is followed by a statement of reason (R). Mark the correct choice as: 

Assertion: First law of thermodynamics states that energy is conserved.

Reason: According to the first laws of thermodynamics SW=SQ+dv