Physics Physics Forum

 October 16th, 2018, 12:14 PM #1 Senior Member   Joined: Dec 2015 From: somewhere Posts: 534 Thanks: 81 Temperature of water $\displaystyle 3ml$ water with temperature $\displaystyle T_1=$ 7 degrees Celsius is combined with $\displaystyle 5ml$ water with temperature $\displaystyle T_2=$ 2 degrees Celsius Find the temperature $\displaystyle T$ of the total water October 16th, 2018, 12:59 PM #2 Senior Member   Joined: Sep 2015 From: USA Posts: 2,452 Thanks: 1337 I like to think of these problems in terms of heat, which is just some amount of a substance at a temperature. Heat adds. Here we end up with $h_i = vol_i \cdot T_i~ml\cdot degC$ $h_{total} =3 \cdot 7 + 5 \cdot 2 =31~ml\cdot degC$ $vol_{total} = 3+5 = 8ml$ $T = \dfrac{h_{total}}{vol_{total}}=\dfrac{31~ml\cdot degC}{8~ml} = \dfrac{31}{8}~degC$ Thanks from idontknow Tags temperature, water Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post pianist Chemistry 3 May 29th, 2017 01:32 AM Ganesh Ujwal Physics 2 January 3rd, 2015 06:47 AM r-soy Physics 1 December 15th, 2013 02:54 PM Chikis Physics 2 August 16th, 2012 08:13 PM doughboy33 Elementary Math 7 August 7th, 2010 05:56 AM

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