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Why is burning paper not a reversible change?
Burning paper is not reversible because the chemical bonds in the paper are broken down and converted into new substances, such as ash, smoke, and gases. These new substances cannot be easily converted back into the original paper structure, making the change irreversible.
Is cutting of wood is reversible or irreversible change?
if you chop down a tree and cut it into a bunch of little peices... can you put that tree back together so that it can continue on living its boring tree life? the answer is no it is irreversible
Classify the burning of natural gases in physical or chemical changes?
The burning of natural gases is a chemical change. It involves a chemical reaction between the natural gases (such as methane) and oxygen in the air to produce heat, light, and new chemical compounds like carbon dioxide and water vapor. This process is not reversible, and it results in the formation of new substances with different properties than the original gases.
Is a rotting potato a chemical change?
Yes, rotting potato is a chemical change because it involves the breaking down of organic compounds in the potato through chemical reactions, resulting in the formation of new substances such as gases and liquid compounds.
Why do gases spread and mix together faster than water?
Gases spread and mix faster than water because gases have lower viscosity and molecular interactions compared to liquids like water. This allows gas molecules to move more freely and quickly to fill the available space. Additionally, gases are compressible, meaning their volume can change easily with pressure, which also aids in their rapid mixing.
What does mixing Neon and argon create?
A mixture of two gases, which some would call a solution of one of the gases in the other.
Why is burning paper not a reversible change?
Burning paper is not reversible because the chemical bonds in the paper are broken down and converted into new substances, such as ash, smoke, and gases. These new substances cannot be easily converted back into the original paper structure, making the change irreversible.
Is cutting of wood is reversible or irreversible change?
if you chop down a tree and cut it into a bunch of little peices... can you put that tree back together so that it can continue on living its boring tree life? the answer is no it is irreversible
What is the mixing and spreading of particles in gases and liquids called?
Diffusion
What is the effect of entropy on mixing two identical gases?
When mixing two identical gases, the effect of entropy is to increase disorder and randomness in the system. This leads to a more uniform distribution of the gases throughout the space, as they move to fill the available volume.
Classify the burning of natural gases in physical or chemical changes?
The burning of natural gases is a chemical change. It involves a chemical reaction between the natural gases (such as methane) and oxygen in the air to produce heat, light, and new chemical compounds like carbon dioxide and water vapor. This process is not reversible, and it results in the formation of new substances with different properties than the original gases.
What is caused by harmful gases mixing with rain and snow?
acid rain
Is water a substance or a mixture Why did you say so?
water is a substance, made of oxygen and hydrogen, because mixing ox and hyd would give nothing but explosion, water is an effect of chemical reaction, not only mixing gases
How do you calculate mixing Gas entropy?
The entropy of mixing is the change in theconfiguration entropy, an extensivethermodynamic quantity, when two differentchemical substances or components are mixed and the volume available for each substance to explore is changed. The name entropy of mixing is misleading, since it is not the intermingling of the particles that creates the entropy change, but rather the change in the available volume per particle.[1] This entropy change is positive when there is more uncertainty about thespatial locations of the different kinds ofmolecules. We assume that the mixing process has reached thermodynamic equilibrium so that the mixture is uniform and homogeneous. If the substances being mixed are initially at different temperatures and pressures, there will, of course, be an additional entropy increase in the mixed substance due to these differences being equilibrated, but if the substances being mixed are initially at the same temperature and pressure, the entropy increase will be entirely due to the entropy of mixing.The entropy of mixing may be calculated by Gibbs' Theorem which states that when two different substances mix, the entropy increase upon mixing is equal to the entropy increase that would occur if the two substances were to expand alone into the mixing volume. (In this sense, then the term "entropy of mixing" is a misnomer, since the entropy increase is not due to any "mixing" effect.) Nevertheless, the two substances must be different for the entropy of mixing to exist. This is the Gibbs paradoxwhich states that if the two substances are identical, there will be no entropy change, yet the slightest detectable difference between the two will yield a considerable entropy change, and this is just the entropy of mixing. In other words, the entropy of mixing is not a continuous function of the degree of difference between the two substances.For the mixing of two ideal gases upon removal of a dividing partition, the entropy of mixing is given by:(1)[tex]\Delta S = n1R\ln((V1+V2)/V1) + n2R\ln((V1+V2)/V2)[/tex]where is the gas constant, n1 and n2 are the number of moles of the respective gases and V1, V2 are their respective initial volumes. After the removal of the partition, each gas particle may explore a larger volume, which causes the entropy change. Note that this equation is only valid if both compartments have the same initial pressure.Note that the mixing involves no heat flow (just the irreversible process of mixing). However, the change in entropy is defined as the integral of dQ/T over the reversible path between the initial and final states. The reversible path between these two states is a quasi-static isothermal expansion. Such a path DOES involve heat flow into the gas: dQ = PdV = nRTdV/V where T is constant (dU = 0). The above equation (1) for entropy is determined by taking the integral of dQ/T over such a path.
What do you get when mixing hydrogen and neon?
When mixing hydrogen and neon, you would not form a compound since they are both noble gases and prefer to exist as individual atoms. Therefore, the result would be a mixture of hydrogen and neon gases.
What would be a chemical change melting ice cream in the sun crushing a soda can mixing salt and sugar or burning wood in the fireplace?
Burning wood in the fireplace is a chemical change because the wood undergoes combustion, leading to the formation of new substances (ash, smoke, and gases). Melting ice cream in the sun, crushing a soda can, and mixing salt and sugar are physical changes as they do not involve the formation of new substances, but rather a change in physical appearance or state.
What is wrong with a car when you change the radiator and thermostat and the top hose still gets tight and no water is mixing with the oil?
You need to have a block test done. It checks for combustion gases in the radiator.
