Specific heat in izobaric process

[player1_1_1]

Homework Statement

how can I calculate specific heat at constant pressure from mass specific heat and mole mass?

 

[Andrew Mason]

Homework Statement

how can I calculate specific heat at constant pressure from mass specific heat and mole mass?

I assume that this is a gas and the mass specific heat is at constant volume.

If so, use mass specific heat (heat energy/unit mass) and mass/mole to determine mole specific heat at constant volume (Joules /(mol. K)).

What is the relationship between Cp and Cv for a gas? (Hint: what is Cp-Cv?)

AM

 

[player1_1_1]

thanks for answer:) this is perfect gas and the specific heat is not volume, but this which is ptex]4200\frac{J}{kg\cdotK}[/tex] for water - how can I calculate this from this?

 

[player1_1_1]

thanks for answer:) this is perfect gas and the specific heat is not volume, but this which is $$4200\frac{J}{kg\cdot K}$$ for water - how can I calculate this from this?

 

[rwisz]

In an isobaric process, the pressure remains constant while the volume may change. To calculate the specific heat at constant pressure, you can use the equation C_p = C_v + R, where C_p is the specific heat at constant pressure, C_v is the specific heat at constant volume, and R is the gas constant.

To find C_v, you can use the relationship C_v = (C_m)_v * M, where (C_m)_v is the mass specific heat and M is the molar mass. Similarly, to find C_p, you can use the relationship C_p = (C_m)_p * M, where (C_m)_p is the mass specific heat at constant pressure.

Therefore, to calculate C_p, you can use the equation C_p = (C_m)_p * M + R. This will give you the specific heat at constant pressure for the given substance. Remember to use consistent units for mass, specific heat, and molar mass in your calculations.