Multiple choice

An ideal gas of mass m and temperature T1 undergoes a reversible isothermal process from an initial pressure P1 to final pressure P2. The heat loss during the process is Q. The entropy change $\triangle$S of the gas is

  1. mR ln $\Big(\frac{P_2}{P_1}\Big)$
  2. mR ln $\Big(\frac{P_1}{P_2}\Big)$
  3. mR ln $\Big(\frac{P_2}{P_1}\Big)$ - $\Big(\frac{Q}{T_1}\Big)$

  4. 0
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Keep practicing — related questions