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April 16, 2014

April 16, 2014

Posted by **Y0gi** on Tuesday, November 30, 2010 at 11:05am.

I just need the work shown

The answer is 44.5 C (= 112 F)

- Physics -
**drwls**, Tuesday, November 30, 2010 at 11:13amThe heat generated by the students at the end of one hour is

10*(200 J/s)*3600 s = ___ Joules

Divide that by the heat capacity of the air in the room,

(Volume)*(air density)*Specific heat)

The ratio will be the temperature rise.

The high value is the result of erroneous assumptions. In a real case, most of the added heat would be lost to the walls and objects in the room.

You do the calculations

- Physics -
**Y0gi**, Tuesday, November 30, 2010 at 12:24pmI did as you said. The only thing I did not see you add to the equation though is the initial temperature of the room. I don't know if I did it right because after your instructions I just added that 20 C to the final answer and it gave me 44.5! I don't know if it's right but it gave me the correct answer.

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