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A homogeneous material is a material which has a uniform composition throughout.

What do we mean when we say "uniform composition"?

I have learnt about pure substances in Thermodynamics which have a uniform chemical composition throughout. Air can be assumed as a pure substance because no matter where I take a unit volume, the chemical composition - the percentages of its constituents (nitrogen, oxygen, CO2 etc) will remain same everywhere.

  • Does being homogeneous,calling a material homogenous the same as beingcalling it a pure substance?

Furthermore, homogenous materials at every point have same properties in a direction. Modulus of elasticity doesn't have a direction, how this makes sense?

  • What is meant by "same properties in a direction"?

A homogeneous material is a material which has a uniform composition throughout.

What do we mean when we say "uniform composition"?

I have learnt about pure substances in Thermodynamics which have a uniform chemical composition throughout. Air can be assumed as a pure substance because no matter where I take a unit volume, the chemical composition - the percentages of its constituents (nitrogen, oxygen, CO2 etc) will remain same everywhere.

  • Does being homogeneous, the same as being a pure substance?

Furthermore, homogenous materials at every point have same properties in a direction. Modulus of elasticity doesn't have a direction, how this makes sense?

  • What is meant by "same properties in a direction"?

A homogeneous material is a material which has a uniform composition throughout.

What do we mean when we say "uniform composition"?

I have learnt about pure substances in Thermodynamics which have a uniform chemical composition throughout. Air can be assumed as a pure substance because no matter where I take a unit volume, the chemical composition - the percentages of its constituents (nitrogen, oxygen, CO2 etc) will remain same everywhere.

  • Does calling a material homogenous the same as calling it a pure substance?

Furthermore, homogenous materials at every point have same properties in a direction. Modulus of elasticity doesn't have a direction, how this makes sense?

  • What is meant by "same properties in a direction"?
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A homogeneous material is a material which has a uniform composition throughout.

What do we mean when we say "uniform composition"?

I have learnt about pure substances in Thermodynamics which have a uniform chemical composition throughout. Air can be assumed as a pure substance because no matter where I take a unit volume, the chemical composition - the percentages of its constituents (nitrogen, oxygen, CO2 etc) will remain same everywhere.

  • Does being homogeneous, the same as being a pure substance?

Furthermore, homogenous materials at every point have same properties in a direction. Also, not able to make sense out of this. Modulus of elasticity doesn't have a direction, how this makes sense?

  • What is meant by "same properties in a direction"?

A homogeneous material is a material which has a uniform composition throughout.

What do we mean when we say "uniform composition"?

I have learnt about pure substances in Thermodynamics which have a uniform chemical composition throughout. Air can be assumed as a pure substance because no matter where I take a unit volume, the chemical composition - the percentages of its constituents (nitrogen, oxygen, CO2 etc) will remain same everywhere.

  • Does being homogeneous, the same as being a pure substance?

Furthermore, homogenous materials at every point have same properties in a direction. Also, not able to make sense out of this. Modulus of elasticity doesn't have a direction, how this makes sense?

  • What is meant by "same properties in a direction"?

A homogeneous material is a material which has a uniform composition throughout.

What do we mean when we say "uniform composition"?

I have learnt about pure substances in Thermodynamics which have a uniform chemical composition throughout. Air can be assumed as a pure substance because no matter where I take a unit volume, the chemical composition - the percentages of its constituents (nitrogen, oxygen, CO2 etc) will remain same everywhere.

  • Does being homogeneous, the same as being a pure substance?

Furthermore, homogenous materials at every point have same properties in a direction. Modulus of elasticity doesn't have a direction, how this makes sense?

  • What is meant by "same properties in a direction"?
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Homogeneous materials and direction dependence of properties

A homogeneous material is a material which has a uniform composition throughout.

What do we mean when we say "uniform composition"?

I have learnt about pure substances in Thermodynamics which have a uniform chemical composition throughout. Air can be assumed as a pure substance because no matter where I take a unit volume, the chemical composition - the percentages of its constituents (nitrogen, oxygen, CO2 etc) will remain same everywhere.

  • Does being homogeneous, the same as being a pure substance?

Furthermore, homogenous materials at every point have same properties in a direction. Also, not able to make sense out of this. Modulus of elasticity doesn't have a direction, how this makes sense?

  • What is meant by "same properties in a direction"?