calculate specific heat capacity at constant pressure of air given specific heat capacity at con

First, we need to know the relation between specific heat capacity at constant pressure (Cp) and

Calculate specific heat capacity at constant pressure of air...

Transcript

00:01 Hello in the question it is given the specific heat capacity at constant volume heat capacity constant volume so we generally denote it as c suffix v that for air is given that is 0 .162 calorie per gram per kelvin and we need to calculate the specific heat capacity at constant pressure that is this cp value we need to calculate at normal temperature and pressure so at normal temperature and pressure that is n tp and density of air is given that is equal to 0 .001293 gram per centimeter cube so that can also be written as so 1 .293 into 10 to the 4 minus 3 gram per centimeter cube so this is the 3 value and it is given that the air is at normal temperature and pressure normal temperature is 273 kelvin and pressure is 1 atm that is 1 .013 into 10 to the power 6 pascal so this is the normal pressure so these are the given values and we need to calculate the specific heat capacity at constant pressure.

01:49 Cp value we need to calculate.

01:52 So now we have the equation cp minus cv is equal to r divided by j.

01:57 And from ideal gas equation, we have pv is equal to nrt.

02:07 So rearranging r is equal to pv divided by.

02:15 So substituting in the place of r, pv divided by t into j, so we can write volume is 1 so p into 1 divided by s into t into j so yes is the density here so now substituting the values normal temperature is 1 .013 into 10 to 4 6 divided by that is s value that is 4 .2 into 10 to the power 7 into 273 temperature into density is 1 .293 into 10 to the power minus so we will get 1 .013 into 10 to 4 6 and when 10 to the power 7 goes to the numerator it will be equal to 10 to the 4 minus 7 and 10 to the 4 minus 3 it will be equal to 10 to the power 3 divided by 4 .2 into 273 into 1 .293 and um when we calculate this value, we will get 1 .01 into 10 to 2 divided by 1 ,082 .5...

Question

Calculate specific heat capacity at constant pressure of air, Given specific heat capacity at constant volume = 0.162 cal/g/K and density of air at NTP is 0.001293 g/cm^3?

Question

Calculate specific heat capacity at constant pressure of air, Given specific heat capacity at constant volume = 0.162 cal/g/K and density of air at NTP is 0.001293 g/cm^3?

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