(Solved): please help Determine the amount of energy required (in MJ) to convert \\( 20 \\mathrm{~g} \\) of ic ...

Determine the amount of energy required (in MJ) to convert \\( 20 \\mathrm{~g} \\) of ice, initially at a temperature of \\( -15^{\\circ} \\mathrm{C} \\), to steam at \\( 155^{\\circ} \\mathrm{C} \\). How much energy is required to reach the melting point? To melt? To reach the boiling point? To boll? To reach the final temperature? Be sure to use the correct specific heat for each phase the water is in, and the correct latent heat for each phase change. Be careful with units. MJ\r\n\r\n(a) Convert 102 Cal to joules. \\( \\times \\) J (b) Suppose that amount of energy is transformed into kinetic energy of a \\( 2.23 \\mathrm{~kg} \\) object initially at rest. Calculate the final speed of the object (in \\( \\mathrm{m} / \\mathrm{s}) \\). \\( \\times \\mathrm{m} / \\mathrm{s} \\) (c) If that same amount of energy is added to \\( 3.79 \\mathrm{~kg} \\) (about 1 gal) of water at \\( 23.7^{\\circ} \\mathrm{C} \\), what is the water's final temperature (in \\( \\left.{ }^{\\circ} \\mathrm{C}\\right) \\) ? The specific heat of water is \\( \\mathrm{c}=4186 \\frac{\\mathrm{J}}{\\left(\\mathrm{kg} \\cdot{ }^{\\circ} \\mathrm{C}\\right)} \\). \\( x{ }^{\\circ} \\mathrm{C} \\)