Calculating Final Temperature of Mixtures

  • Thread starter Thread starter danago
  • Start date Start date
  • Tags Tags
    Mixtures
AI Thread Summary
In a Year 11 physics class, students learned to calculate the final temperature of a mixture of substances, specifically 2.2 kg of ice at -16°C and 0.4 kg of steam at 104°C. The calculated final temperature of the mixture is approximately 24.6°C. The discussion emphasizes understanding the underlying principles, particularly the conservation of energy, where the heat gained by the cold body equals the heat lost by the hot body. A request for clarification on the scientific concepts behind these calculations was made, indicating a need for deeper comprehension. The thread was closed due to the existence of a related discussion where the student could show their work.
danago
Gold Member
Messages
1,118
Reaction score
4
Hi. In a year 11 physics class, i have been learning about heat. Today, we learned how to calculate the final temperature of a mixture of 2 different substantes.

The example we were given was the calculation of the tempreature of a mixture of 2.2kg of ice (-16 degrees celcius), and 0.4kg of steam (104 degrees celcius). I know how to work through the question to get the correct answer, which if i remember correctly, was approximately 24.6 degrees.

If somebody doesn't mind, could you please go through the question, explaining WHY things happen. Thats what I am finding hard, understanding why things happen, and understanding the theory behind it all.

Thanks for the help.
Dan.
 
Physics news on Phys.org
you have already told that you know how to calculate. Please show your work if you need a homework help.
But I assume your question is to understand the science behind it. This is as per the law that - heat gained by the cold body is heat lost by hot body - a result of energy conservation principle.
 
Thread 'Collision of a bullet on a rod-string system: query'
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
Back
Top