badge image

Enroll For Free Now & Improve Your Performance.

User Icon
User Icon
User Icon
User Icon
User Icon

Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.

Use Coupon: CART20 and get 20% off on all online Study Material

Total Price: Rs.

There are no items in this cart.
Continue Shopping
Grade: 10


Hot water of mass 0.35kg at 80degrees celsius is poured into a copper cup which is initially at 25 degrees celsius. The mass of the cup is 0.80kg. Assume that no energy is lost to the surroundings. Give - Specific Heat Capacity of water = 4200Jkg -1 C -1 Specific Heat Capacity of Copper = 400Jkg -1 C -1 Question) Find the initial Temperature of water. Thanks, Vishnu

10 years ago

Answers : (1)

Rohith Gandhi
24 Points

Dear Vishnu,

since no energy is lost to surroundings

heat lost by water = heat gained by copper cup

let final common temperature of the mixture = T


0.35X4200X(80-T) = 0.8X400X(T-25)

117600-1470T = 320T-8000

=> 117600+8000 = 1470T+320T


=>T = 125600/1790 = 70.16 degree C

final common temperature of mixture = 70.16 degree C

Please feel free to post as many doubts on our discussion forum as you can. If you find any question
Difficult to understand - post it here and we will get you the answer and detailed solution very quickly. We
are all IITians and here to help you in your IIT JEE preparation.

All the best Vishnu !!!


Askiitians Experts

Rohith Gandhi P

10 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

Course Features

  • 101 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution

Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions

Ask Experts

Have any Question? Ask Experts

Post Question

Answer ‘n’ Earn
Attractive Gift
To Win!!! Click Here for details