{"id":3762,"date":"2018-02-15T02:02:40","date_gmt":"2018-02-15T02:02:40","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=3762"},"modified":"2024-11-13T12:16:41","modified_gmt":"2024-11-13T12:16:41","slug":"resolucao-comentada-fisica-termica-dilatometria","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/enem\/fisica-termica-dilatometria\/resolucao-comentada-fisica-termica-dilatometria\/","title":{"rendered":"F\u00edsica T\u00e9rmica – Resolu\u00e7\u00e3o – EN"},"content":{"rendered":"

THERMAL PHYSICS \u2013 RESOLUTION<\/span><\/h1>\n
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Commented Resolution<\/span><\/p>\n

Thermal Physics<\/span><\/b><\/p>\n

Dilatometry<\/span><\/b><\/p>\n

01-<\/span><\/b><\/p>\n

I- In the hottest time, the volume increases and, in the same volume there would be less mass \u2014 you would suffer a loss \u2014 False<\/span><\/b><\/p>\n

II- With a lower temperature, the volume decreases and, in the same volume there would be more mass \u2014 you would have an advantage \u2014 correct<\/span><\/b><\/p>\n

III- Correct \u2014 you would be buying what really matters, which is the dough.<\/span><\/b><\/p>\n

R- And<\/span><\/b><\/p>\n

 <\/p>\n

02- \u00a0<\/span><\/b><\/p>\n

In each liter of hydrated alcohol there are \u2014 0.96L of alcohol (96%) and 0.04L of\u00a0<\/span>\u00a0water<\/span><\/span><\/a>\u00a0(4%) \u2014 calculation of the mass of alcohol \u2014 dalcohol=malcohol\/Valcohol \u2014 800g\/L=malcohol\/0.96L \u2014 malcohol=768g \u2014 mass of water \u2014 dwater=mwater\/Vwater \u2014 1,000g\/L=mwater\/0.04L \u2014 mwater=40g \u2014 dmixture=(malcohol + mwater)\/Vmixture=(768 + 40)\/1 \u2014 dmixture=808g\/L \u2014\u00a0\u00a0<\/span><\/b>R- E<\/span><\/b><\/p>\n

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