| ⇦ | 
| ⇨ |
Two moles of an ideal gas expand spontaneously into a vacuum. The work done is
Options
(a) 2 joules
(b) 4 joules
(c) zero
(d) infinite
Correct Answer:
zero
Explanation:
In a free expansion , gas is allowed to expand into a vacuum. This happens quickly,so there is no heat transferred. No work is done,because the gas does not displace anything. According to the first law, this means that ΔE initial = 0. There is no change in internal energy, so the temperature stays the same.
Related Questions: - A mixture contains O₂ and N₂ in the ratio of 1 : 4 by the weight
- The long form of periodic table is based on
- How many grams of dibasic acid (mol.wt.200) should be present in 100 mL.
- The resistance of 1N solution of acetic acid is 250 ohm, when measured in a cell
- Heat produced on burning 6.3 g of a fule raises the temperature of 1.5 kg
Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A mixture contains O₂ and N₂ in the ratio of 1 : 4 by the weight
- The long form of periodic table is based on
- How many grams of dibasic acid (mol.wt.200) should be present in 100 mL.
- The resistance of 1N solution of acetic acid is 250 ohm, when measured in a cell
- Heat produced on burning 6.3 g of a fule raises the temperature of 1.5 kg
Topics: Thermodynamics (179)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply