Question 981: Thermodynamics & KTG

Question

The molar specific heat at constant pressure of an ideal gas is (7/2) R.  The ratio of specific heat at constant pressure to that at constant volume is

Accepted Answer

$${C_P} = {7 \over 2}R;{C_V} = {C_P} - R$$
$$ = {7 \over 2}R - R = {5 \over 2}R$$
$${{{C_P}} \over {{C_V}}} = {{7/2R} \over {5/2R}} = {7 \over 5}$$

Answer

9/7

Answer

7/5

Answer

8/7

Answer

5/7

Thermodynamics & KTG

The molar specific heat at constant pressure of an ideal gas is (7/2) R. The ratio of specific heat at constant pressure to that at constant volume is

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