| ⇦ | 
| ⇨ |
In a closed insulated container a liquid is stirred with a paddle to increase the temperature which of the following is true
Options
(a) ΔE = w ≠ 0, q = 0
(b) ΔE = w = q ≠ 0
(c) ΔE = 0, w = q ≠ 0
(d) w = 0, ΔE = q ≠ 0
Correct Answer:
ΔE = w ≠ 0, q = 0
Explanation:
The mathematical form of first law of thermodynamics : q = ΔE + W, Since the system is closed and insulated, q = 0, Paddle work is done on system. Therefore W ≠ 0. Temperature and hence internal energy of the system increases. Therefore ΔE ≠ 0.
Related Questions: - Which one of the following statements regarding photochemical smog is not correct
- The catalyst used in Ziegler process for polythylene manufacture
- The anion, (Si₆O₁₈)¹²⁻ is present in
- In the final answer of the expression (29.2 – 20.2) (1.79 x 10⁵) / 1.37. The number
- Maximum bond angle at nitrogen is present in which of the following
Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following statements regarding photochemical smog is not correct
- The catalyst used in Ziegler process for polythylene manufacture
- The anion, (Si₆O₁₈)¹²⁻ is present in
- In the final answer of the expression (29.2 – 20.2) (1.79 x 10⁵) / 1.37. The number
- Maximum bond angle at nitrogen is present in which of the following
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