Consider the Following Processes (Treat All Gases as Ideal) $\omicron$

question 151

Multiple Choice

Consider the following processes (treat all gases as ideal) .
1.The pressure of 1 mole of oxygen gas is allowed to double isothermally.
2.Carbon dioxide is allowed to expand isothermally to 10 times its original volume.
3.The temperature of 1 mol of helium is increased 25 ^$\omicron$ C at constant pressure.
4.Nitrogen gas is compressed isothermally to half its original volume.
5.A glass of water loses 100 J of energy reversibly at 30 ^$\omicron$ C.
Which of these processes lead(s)
To an increase in entropy?"

• A) 1 and 4
• B) 5
• C) 3 and 5
• D) 2 and 3
• E) 1 and 2

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