Find the pressure of an air as a function of altitude h if the temperature of the air decreases linearly with h, ie., the temperature gradient is con stant and is equal to -a (dt/dh = -a). express also the pressure as a function of temperature under this condition. from the results obtained find the limiting equation for an isothermal atmosphere (a + 0). in your derivations assume that the air can reasonably be described by the ideal gas law