Uece 2015) Considere uma garrafa de refrigerante posta verticalmente sobre uma mesa horizontal. Com a garrafa ainda fechada, sua parte superior, entre a superfície do líquido e a tampa, é preenchida
por um gás pressurizado. Considere que o refrigerante está inicialmente a 10°C, e passados 10
minutos esteja a 21°C. Sabendo que o volume se mantem constante, sobre o gás entre a superfície do
líquido e a tampa, é correto afirmar que, ao final dos 10 minutos,
a) tem sua energia térmica aumentada e sua pressão reduzida.
b) tem sua energia térmica e pressão aumentadas.
c) tem sua energia térmica e sua pressão reduzidas.
d) tem sua energia térmica reduzida e sua pressão aumentada.

b) Pressure and internal energy increases.

Explanation: According to the temperature and pressure law, also known as Gay-Lussac's Law, pressure and temperature are directly proportional, which means that when temperature increases so does pressure and vice-versa, so, since temperature increased, pressure will also increase.

Internal Energy (Thermal Energy) is the total amount of energy associated with the motion of the atoms or molecules in the system. Temperature and Internal Energy are also directly proportional, because, as temperature increases, the movement of the particles increases and so do its internal energy. So, as temperature rises internal energy also rises.

For this bottle, as temperature rises, both pressure and internal energy also rises, so the right alternative is "Pressure and internal energy increases."

some think that theories become laws, but theories and laws have separate and distinct roles in the scientific method. a law is a description of an observed phenomenon in the natural world that hold true every time it is tested. it doesn't explain why something is true; it just states that it is true.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .