Question

Objective knowledge Check Question 4 For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave Sunchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. System Change AS AS < 0 SO A few grams of quid ammonia (H) The ammonia evaporates at a constant temperature of 6.0 not enough information ASO ASO A few moles of nitrogen (N) gas The nitrogen expands from a volume of 2.0 L to a volume of 110L while the temperature is held constant at 39.0 °C not enough ASCO A few moles of nitrogen (N) gas The nitrogen is cooled from 57. 0°C to 6.0 °C and is also compressed from a volume of 4.0 L to a volume of 3.0 L AS > 0 not enou Information X S 2 Don't know Submit 2010 M M Alda

Answer 1

change AS System A Few gram of liquid NH₃ The NH3 evaponates at a constant temperature of ásyo Reason: liquid NH3 evaponate to NH3 gus. So randomness of molecule increases - 6.0°C A Few moles of N₂ gus asyo Reason: The N₂ expands from a volume of 2.2 to a volume of 11.02 while the temperature is held constant at 39:00 As the volume of the Хүлім мегиищ tw randomness of the molecule also increases So entropy increases.

A few moles of Mz guy The N₂ is cooled from 57°C to Gioc and also compressed from volume of 4L to volume of 32. ASLO Reason: As the temperature of the system decneasy and р ши іnепиану, volume of the system decreases. Unden this condition random- ness of Ny gus Олегии.