Acharge density which varies linearly in time if α is a real constant, the continuity equation is satisfied by the charge and current distributions

What is the answer for this. the correct answer only

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)

When does your body conduct current more readily?