Pls answer q5 p
SE ION (E) : CALCULATION OF WORK
An ideal monoatomic gas is taken round the cycle ABCDA as shown in the P—
V diagram. Find the work done by the gas during the cycle?
c
E2. one mole Ofa gas expands with temperature T such that its volume, V = kT2, where kisa constant. if the
temperature Of the gas changes by 600 C then find the work done by the gas?
Find the work done by gas going through a cyclic process shown in figure?
o
Pressure(kPa)
E 4. One mole of an ideal monoatomic gas is at 360 K and a pressure of 105 pa. It is compressed at constant
pressure until its volume is halved. Taking R as 8.3 J mol-l K-1 and the initial volume of the gas as 3.0 x IO-
2 m3, find the work done on the gas?
4
E 5. The following graph shows two isotherms fora fixed mass ofan ideal gas. Find the t 3
ratio of r.m.s. speed of the molecules at temperatures T I amd T 2 ?
E 6. The pressure of a gas changes linearly with volume from 10 kPa, 200cc to 50 kPa, 55cc. (a) Calculate th
work done by the gas. (b) If no heat is supplied or extracted from the gas, what is the change in the intem
energy of the gas?
SE ION (F) : FIRST LAW OF THERMODYNAMICS
When a thermodyamic system is taken from state A to state B via path ACB
c
(fig.), 100 cal is given to the system and 60 cal work is done by the gas. Along
the path ADB, the work done by the gas is 20 call Find the heat flowing into the
—system in this case? z) 20
