posted by aru .
what is difrent between cp and cv
cp is constant pressure
cv is constant volume
Both C's are specific heats. Cp is the specific hear at constant pressure and Cv is the specific heat at cosnatnt volume. (The C is usually capitalized and the p or v is usually a subscript).
For an ideal gas, Cp = Cv + R,
where R is the ideal gas constant, 1.986 calories per mole per degree C.