PV Work
Trending Questions
Q.
An ideal gas expands in volume from 1 × 10−3 to 1 × 10−2 m3 at 300 K against a constant pressure of 1 × 105 Nm−2. The work done is
270 kJ
−900 kJ
−900 J
900 kJ
Q.
1 g H2 gas as STP is expanded so that volume is doubled. Hence, work done is
22.4 L atm
5.6 L atm
111.2 L atm
1.135 kJ
Q.
2 mole of an ideal at 27∘C expands iso - thermally and reversibly from a volume of 4 litre to 40 litre. The work done(in kJ)by the gas is:
w = -28.72 kJ
w = - 11.488 kJ
w = - 5.736 kJ
w = - 4.988 kJ
Q. If w1, w2, w3, w4 are work done is isothermal, adiabatic, isobaric and isochoric reversible processes, then the correct sequence (for expansion) would be:
- w1>w2>w3>w4
- w3>w2>w1>w4
- w3>w2>w4>w1
- w3>w1>w2>w4
Q. Assertion :Statement-I : The heat absorbed during the isothermal expansion of an ideal gas against vaccum is zero.
Because Reason: Statement-II : The volume occupied by the molecules of an ideal gas is zero.
Because Reason: Statement-II : The volume occupied by the molecules of an ideal gas is zero.
- Statement-I is true, Statement-II is true ; Statement-II is correct explanation for Statement-I.
- Statement-I is true, Statement-II is true ; Statement-II is not a correct explanation for Statement-I.
- Statement-I is true, Statement-II is false.
- Statement-I is false, Statement-II is true.
Q. An ideal gas expands in volume from 1×10−3m3 to 1×10−2 m3 at 300 K against a constant pressure of 1×105 Nm−2.
The work done is:
- −900 J
- 270 kJ
- 900 kJ
- −900 kJ
