Goc L-15

If 1.5 L of an ideal gas at a apressure of 20 atm expands isothermally and reversibly to a final volume of 15 L, the work done by the gas in L atm is:

Discussion Ex-1 (1-15) || Ex-2 (L1) (1-4) || Ex-3 (L-2)1

Calculate entropy change (in joule) for reversible isothermal expansion from 5L to 15L for 2 mol of an ideal gas.

S.L. Loney (Ex-14 Q.21-31) || Ex-15

S.L. Loney (Ex-14 Q.21-31) || Ex-15

You are given three lenses L_(1),L_(2) and L_(3) each of focal length 10 cm. An object is kept at 15 cm in front of L_(1), as shown. The final real image is formed at the focus 'T' of L_(3). Find the separations between L_(1),L_(2) and L_(3).

1 mole of a gas occupying 3 L volume is expanded against a constant external pressure of 5 atm to a volume of 15 L. The work done by the system is __________ .