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| 183_notes:examples:thermal_equilibrium [2014/10/28 05:13] – pwirving | 183_notes:examples:thermal_equilibrium [2014/10/28 13:54] (current) – pwirving | ||
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| The total energy of the two blocks does not change, because there is no energy transfer from or to the surroundings. | The total energy of the two blocks does not change, because there is no energy transfer from or to the surroundings. | ||
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| + | Therefore we want to solve for Tf which is the final temperature for both blocks. | ||
| m1C1(Tf−T1i)+m2C2(Tf−T2i)=0 | m1C1(Tf−T1i)+m2C2(Tf−T2i)=0 | ||
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| + | Substitute in values for all known variables and solve for Tf. | ||
| (300g)(1.0J/K/g)(Tf−500)+(650g)(0.42J/K/g)(Tf−350)=0 | (300g)(1.0J/K/g)(Tf−500)+(650g)(0.42J/K/g)(Tf−350)=0 | ||