Required information

Problem $05\mathrm{.}026$E $-$ Mass and energy transport

Steam is leaving a pressure cooker whose operating pressure is $20$ psia. It is observed that the amount of liquid in the cooker has decreased by $0\mathrm{.}6$ gal in $45$ minutes after the steady operating conditions are established, and the cross$-$sectional area of the exit opening is $0\mathrm{.}145i{n}^2.$ The properties of saturated liquid water and water vapor at $20$ psia are $v_f=0\mathrm{.}01683f\frac{t^3}{l}bm,v_g=20\mathrm{.}093f\frac{t^3}{l}bm,u_g=1081\mathrm{.}8Bt\frac{u}{l}bm,$ and $h_g=1156\mathrm{.}2Bt\frac{u}{l}bm.$

Problem $05\mathrm{.}026$E$.$c $-$ The rate of energy transport

Determine the rate at which energy is leaving the cooker by steam.

The rate at which energy is leaving the cooker by steam is $|$Btu$/$s$.$