Recent content by HDTeach

Thank you, I just worked it out using the other method and got the same answer so it makes sense to me now! Thank you for all of your help :)

Haha oops yes I see the error! T = 23.9 degrees C Thank you for your help. I had a worked example that confused me - is this correct in your view? Question: 1.5 l of water from a kettle at 90°C is mixed with a bucket of cold water (10 l at 10 °C) to warm it up for washing a car. Find the...

Thank you! So would it be more like: E = mc∆T = 3.5*840*(80-T) = 10*4200*(T-20) 235200 - 2940T = 42000T - 840000 1075200 = 44940T T = 0.4 degrees C?

Homework Statement Imagine I have a 3.5 kg brick at 80 °C that I put in 10l of water at 20 °C. What will the final temperature of the water be? SHC brick = 840 J kg-1 °C -1 Homework Equations E = mc∆θ The Attempt at a Solution First I calculated the energy available from the brick to heat...