| ⇦ | 
| ⇨ |
When 1 kg of ice at 0⁰C melts to water at 0⁰C, the resulting change in its entropy, taking latent heat of ice to be 80 cal/⁰C, is
Options
(a) 273 cal/K
(b) 8 x 104 cal/K
(c) 80 cal/K
(d) 293 cal/K
Correct Answer:
293 cal/K
Explanation:
Change in entropy is given by
dS = dQ / T or ∆S = ∆Q / T = mLf / 273
∆S = 1000 x 80 / 273 = 293cal / K
Related Questions: - A thin wire of length L and mass M is bent to form a semicircle.
- In a discharge tube ionization of enclosed gas is produced due to collisions between
- A bar magnet has a coercivity of 4×10³ Am⁻¹. It is placed inside a solenoid
- The respective speeds of the molecules are 1,2,3,4 and 5 km/s.
- A projectile is fired at an angle of 45° with the horizontal
Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A thin wire of length L and mass M is bent to form a semicircle.
- In a discharge tube ionization of enclosed gas is produced due to collisions between
- A bar magnet has a coercivity of 4×10³ Am⁻¹. It is placed inside a solenoid
- The respective speeds of the molecules are 1,2,3,4 and 5 km/s.
- A projectile is fired at an angle of 45° with the horizontal
Topics: Thermodynamics (179)
Subject: Physics (2479)
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