The velocity of propagation of sound in air (C) is calculated by assuming the process to be isentropic. What error in C is involved if the sound propagation is assumed to occur isothermally ?...

The velocity of propagation of sound in air (C) is calculated by assuming the process to be isentropic. What error in C is involved if the sound propagation is assumed to occur isothermally ?

Calculate the weight of 5 litres of glycerin of specific gravity 1.26. What is its specific weight and specific volume?