16.) A 100-liter hot air balloon is filled with 75 liters of air at 20°C (=293 K). To what temperature does the air need to be heated in order to completely fill the balloon?

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.