Circle the correct answer 1) Reflect back on Joule\'s tree expansion expernmenta
ID: 543835 • Letter: C
Question
Circle the correct answer 1) Reflect back on Joule's tree expansion expernmental and crce the correct a) qo b) ww d) Pessemal e) all of the above t) only a), b), c) are correct g) only a), b), d) are correct h) only b) and d) are correct 2) Consider a graphs for an ideal gas. If one line is an adiabat ant the other an isotherm, circle the correct answer a) Line a) follows law Pyr = constant. b) Line b) follows law Pyr = constant. e) Correct are: a), c) Correct are: a), d). g) Correct are: b), c). h) Correct are: b), d)Explanation / Answer
1) ANSWER IS G) only a,b,d are correct
The Joule expansion (also called free expansion) is an irreversible process.so option (c) is wrong .
During the expansion there is no work exchanged with the surroundings because there is no motion of the boundaries.so W=0.
The enclosure is insulated so there is no heat exchange.so Q=0.
option (d) is also correct statement
2) ANSWER IS G
for adiabatic process:- PV=constant
and Tb>Ta