Eight fluid ounces (1 qt = fl 32 oz) of a beverage in a glass at 18.0°c is to be cooled by adding ice and stirring. the properties of the beverage may be taken to be those of liquid water. the enthalpy of the ice relative to liquid water at the triple point is –348 kj/kg. estimate the mass of ice (g) that must melt to bring the liquid temperature to 4.0°c

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added