10 A block of ice at -20°C is heated until it turns to steam. The graph of temperature against thermal energy absorbed is shown.
The latent heat of fusion of ice is 340kJ/kg.
what is the mass of the ice?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final