Respostas

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2014-07-14T17:06:10-03:00
A) 760mmHg ---- 1atm
91,2mmHg ---x
x = 91,2/760
x = 0,12 atm

b) 1cmHg ------ 10mmHg
x -------- 250mmHg
x = 250/10
x = 25cmHg

2 - a) -23 +273 = 250K
b) 42 - 273 = - 231 C
c) 373 - 273 = 100 C
d) 200 - 273 = -73 C
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