b. A spherical metal ball with initial temperature of 150°C is placed outside where the temperature is 40°C. The temperature of the spherical metal ball dropped to 110°C at 3:10 PM , and at 3:15 PM, the metal ball's temperature goes down to 90°C. At what time was the spherical metal ball brought outside? When will its temperature be 50°C?

Explain why you can’t cool down your kitchen by leaving your refrigerator or freezer door open with your refrigerator plugged in for an extended period of time.

One method of converting heat transfer into doing work is for heat transfer into a gas to take place, which expands, doing work on a piston, as shown in the figure below.                                                                                                   (a) Is the heat transfer converted directly to work in an isobaric process, or does it go through another form first? Explain your answer. (b) What about in an isothermal process?                                                          (c) What about in an adiabatic process (where heat transfer occurred prior to the adiabatic process)?

Please provide solution, thanks.