TUDO de TERMOQUÍMICA para o ENEM (aula didática Medicina)

🔥 Participe da Semana da Aprovação em Medicina e descubra o passo a passo para garantir sua aprovação em Medicina no ENEM 2025!👇🏻

[larissalopes]

Bora engajar pra sair de probabilidade galera ✈️

[estercoelho]

Eu nunca vi uma didática tão boa assim aqui no youtube, to maratonando todas as aulas Vini, parabens de verdade, vc é luz.

[vitoriacarolinastudies]

vini, faz um video com tudo de geometria para o enem

[victortardin]

Cara, disponibiliza aquela aulona FODA de análise combinatória pra coroar a tropa do alto desempenho!🫡 POR FAVOR🙏🏻

[PhzinndoRJ]

Petição p Vini virar presidente do Ministério da Educação 🙌🙌

[vitoriacarolinastudies]

macete p/ decorar a entalpia de ligação: formEX (formação de ligação é EXO) e quebrENDO (quebra de ligação é ENDO) pode ser que te ajude no dia da prova. Boa Sorte!

[suetam]

Vini, traz todos os simulados do SAS, Somos, Bernoulli e por aí vai depois desse projeto de trazer todas provas do enem.

[joaootav]

Vinii, faz uma aula assim de log e funcao trigonométrica, por favoor

[GabrielaLopes-yv]

Melhor professor
Continue postando maissss, por favoorrr

[giovanajustino]

Vini, se puder, faz um vídeo mostrando e explicando por cima todas as fórmulas de matemática/física!

[raqueloliveira]

Faz resolvendo questões de log. Dificuldade de muitos 🥲

[juliagracielle]

Acabei de chegar, que fique salva amém 🙏🏻

[jadermiguel]

Vinícius, faz um vídeo sobre Química Orgânica.

[gabrielalopes]

Vini, faz uma de biologia (genética, biotecnologia)

[Rayssamaciel-mbgu]

Obrigadaaaa prof!!! Falta pouquinho pra chegar em mil likes! Vou mandar no grupo da família pra eles darem o like e vou pegar o Tablet também ❤

[aalvimks]

Vini faz uma live sobre assuntos mais recorrentes em biologia

[amandapinzeta]

vini, eu quero que vc seja muito feliz em toda a sua vida. vc eh sensacional. obrigada por tanto

[gislenenara]

🎯 Key points for quick navigation:

00:00 *📚 Vinício Oliveira announces the release of exclusive thermochemistry classes on YouTube for free, aiming to boost final exam preparation.*
00:29 *🎯 Topics covered include concepts like enthalpy, exothermic, and endothermic reactions, important for ENEM exams.*
01:09 *📅 Students preparing for future ENEM or entrance exams can join the platform's waitlist; details in the description.*
01:38 *🔬 Begins exploration of thermochemistry with an experiment to determine the calorific value of food.*
02:21 *🥘 Explanation of a simple experiment involving combustion to measure the calories in food.*
03:28 *🔥 Combustion is key as it's an exothermic reaction, releasing heat absorbed by water to measure temperature change.*
04:24 *📏 By measuring temperature change, mass, and specific heat of water, calorie content of food is determined.*
05:20 *⚗️ Distinction between exothermic and endothermic reactions is crucial in thermochemistry.*
06:01 *🔄 Endothermic reactions absorb heat, with a positive enthalpy change (ΔH > 0).*
07:10 *🔄 Enthalpy (H) helps measure energy of reactants and products; focus is on the change in enthalpy (ΔH).*
08:05 *🌡️ Energy change calculations use enthalpy of products minus reactants; outcome determines reaction type.*
09:02 *🔍 Three ways to depict endothermic reactions: ΔH positive, reactants + heat, or products - heat.*
11:29 *📈 Graphically, endothermic reactions show an increase in enthalpy as reactants gain energy.*
13:22 *⏫ Energy of activation is needed to reach the highest energy point, forming the activated complex.*
14:47 *📉 Formation of products results in decreased enthalpy; positive enthalpy change signifies an endothermic process.*
16:36 *↔️ Exothermic reactions release heat, opposite to endothermic, and are characterized by a negative ΔH.*
17:33 *🔥 Combustion reactions are exothermic, releasing heat into the environment, indicated by a negative enthalpy change.*
18:00 *➖ Enthalpy change is always calculated as the enthalpy of products minus the enthalpy of reactants.*
18:29 *📝 Exothermic reactions can be represented in three forms, including showing heat as a product.*
20:01 *🔄 Energy balance is crucial when depicting exothermic reactions to avoid misinterpretation.*
21:10 *📉 In a reaction energy graph, reactants start with higher enthalpy than products, signaling an exothermic reaction.*
22:06 *🔋 Activation energy is required for reactants to reach the activated complex, shown by the peak in the reaction graph.*
22:45 *📉 A decrease in enthalpy from reactants to products results in a negative enthalpy change, fundamental to exothermic reactions.*
24:05 *🏆 The scientist Richard Feynman's observations highlight the need for activation energy for combustion to occur naturally.*
28:02 *💡 Combustion reactions in cars require an initial energy input, like a spark, to overcome activation energy.*
31:41 *🚗 The correct energy graph for combustion shows reactants with high energy converting to lower-energy products after receiving activation energy.*
35:02 *🔍 The enthalpy change (\(\Delta H\)) for the reaction discussed is less than zero, indicating an exothermic process where products have lower energy than reactants.*
36:24 *🧬 Enzymes facilitate reactions by lowering activation energy, demonstrated using two curves, one with and one without the enzyme.*
38:12 *📉 The energy of the activated complex for curve two is confirmed at 50 kcal/mol.*
39:23 *❌ Reactions labeled as "endothermic" cannot have \(\Delta H\) less than zero; contradictions arise when \(\Delta H\) given as negative for an endothermic reaction.*
42:48 *⚖️ Curves demonstrate how enzymes decrease reaction's activation energy, with curve one illustrating no enzyme and curve two showing enzyme presence.*
44:10 *⚗️ Methods to determine enthalpy variations include formation enthalpy, bond enthalpy, and Hess's Law, which are crucial for understanding reaction energetics.*
50:06 *🧪 Example problem with titanium dioxide production showcases applying enthalpy variation calculation principles using given formation enthalpies.*
52:28 *🔄 Confirming reactions are balanced is essential as it affects enthalpy calculations, highlighted through an example with specific reactants and products.*
02:05:34 *🔄 Transition from liquid to gas increases entropy, generally.*
02:06:00 *📈 Entropy change is positive when reactants are liquid and products are gas.*
02:06:44 *📊 Gibbs free energy equation considers both enthalpy and entropy for spontaneity.*
02:07:37 *🔍 Reaction spontaneity varies with enthalpy and entropy change values.*
02:08:32 *🚫 Endothermic reactions are not always spontaneous; false generalization.*
02:09:14 *✅ Exothermic reactions are always spontaneous due to negative Gibbs free energy change.*

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[anthonygueurymacedoamaral]

faz um video de doenças que caem no enem

[guilhermedeamorimgomes]

Vou botar pra quebrar nesse segundo dia, espero ir bem principalmente em naturezas que eu acho mais difícil