Why does an empty plate not heat up in the microwave?

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?