In physics, the ideal gas law describes the relationship among the pressure, volume, and temperature of a gas sample. this law is represented by the formula pv = nrt, where p is the pressure, v is the volume, t is the temperature, n is the amount of gas, and r is a physical constant. which of the equations below are equivalent to the formula pv = nrt? select all that apply. a. p = vnrt b. v = nrt/p c. n = pv/rt d. r = pvnt e. t = nr/pv