Alex heated some water in a pan until the entire water changed into vapor. The mass of the total vapor formed was 150 g. What was most likely the mass of the water Alex heated and why? (1 point) 175 g, water vapor formed is lighter than water

150 g, mass of the water remains the same when it changes state

175 g, some water molecules are destroyed during phase change

150 g, mass remains same during chemical change of water into vapor

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.