Find the change in entropy (in J/K)when 5.00 moles of an ideal monatomic gas are allowed to expand isobarically from an initial volume of 20 cm3 to a final volume of 100 cm3.
Ten kilograms of water at 0C is mixed with 10 kg of water at 100C.The change in entropy (in cal/K)of the system is
A vessel containing 10 kg of water is left out where it evaporates.If the temperature remains constant at 20C,what is the change in entropy (in kcal/K)? (The latent heat of vaporization at 20C is 585 cal/g. )
A gasoline engine absorbs 2 500 J of heat at 250C and expels 2 000 J at a temperature of 50C.The magnitude of the change in entropy (in J/K)for the system is