(Solved): 1. A vapor compression refrigeration machine uses 120 \\( \\mathrm{kW} \\) of electric power to pro ...

1. A vapor compression refrigeration machine uses 120 \\( \\mathrm{kW} \\) of electric power to produce 240 tons of cooling. What is the COP? 2. A chiller uses \\( 150 \\mathrm{~kW} \\) of electric power to produce 250 tons of cooling. What is the COP? 3. A chiller uses \\( 120 \\mathrm{~kW} \\) of electric power to produce 240 tons of cooling. What is the \\( \\mathrm{kW} / \\) ton? 4. What is the COP for heating if the \\( \\mathrm{T}_{\\text {hot }} \\) is \\( 60^{\\circ} \\mathrm{F} \\) and the \\( \\mathrm{T}_{\\text {cold }} \\) is \\( 40^{\\circ} \\mathrm{F} \\) ? 5. What is the COP for cooling if the \\( \\mathrm{T}_{\\text {hot }} \\) is \\( 85^{\\circ} \\mathrm{F} \\) and the \\( \\mathrm{T}_{\\text {cold }} \\) is \\( 50^{\\circ} \\mathrm{F} \\) ?