Mechanical Engineering - Thermodynamics - Discussion

Discussion Forum : Thermodynamics - Section 1 (Q.No. 20)
20.
The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is
equal to one
less than one
greater than one
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
26 comments Page 2 of 3.

Anandprakash said:   1 decade ago
Ratio of cp and cv is greater then one because value of cp is greater then cv.

ROHIT KUMAR said:   1 decade ago
Since cp > cv & R = cp/cv.

So R(cp/cv) is always greater than 1.

Ambika said:   1 decade ago
cp/cv = 1.14.

This value is constant.

We denoted it by gama.

Rathod said:   1 decade ago
And r = 1.14 is for air not for all gases. But r>1.

Akshay said:   1 decade ago
@Prasanth.

Why so? Why Cp is always greater than Cv?

Jyoti prakash said:   1 decade ago
Cp is always greater than Cv, R = Cp>Cv

Riko said:   1 decade ago
Justify the equation :
y = cp/cv = 1.14.

Sanjay said:   1 decade ago
Cp/Cv = gama.
Which is greater than 1.

Prasanth said:   1 decade ago
Because Cp is always greater than Cv.

Manish singh said:   10 years ago
Because cv is always greater than 1.
(1)


Post your comments here:

Your comments will be displayed after verification.