Solve the folloiwng problem:
Q: It is not uncommon for the night sky temperature in desert regions to drop to -40°C. If the ambient air temperature is 20°C and the convection coefficient for still air conditions is approximately 5 W/m2 · K, can a shallow pan of water freeze? You must provide the solution of given problem step by step.You should include all the units which are needed to solve the problem.