Question
The work done during reversible isothermal expansion of one mole of hydrogen gas at 25^ C from pressure of 20 atmosphere to 10 atmosphere is (Given R =2.0 cal K ^ -1 ~mol ^ -1 )
NEET
Chemistry
Thermodynamics (C)
2024
NEET 2024
NEET Chemistry Question (2024) — Solution
Options
- A. -413.14 calories
- B. 413.14 calories
- C. 100 calories
- D. 0 calorie
Answer
A. -413.14 calories
Step-by-step solution
aligned W_ rev, iso & =-2.303 n R T P_i P_f \\ & =-2.303 1 2 298 2 \\ & =-2.303 1 2 298 0.3 \\ & =-413.14 calories aligned
Related: Chemistry — Thermodynamics (C) · All PYQ Banks