An open container holds 0.550 kg of ice at -15.0°C. Themass of the container can be ignored. Heat is supplied to the containerat the constant rate of 800.0 J/min for 500.0 min. (a) After how manyminutes does the ice start to melt? (b) After how many minutes, fromthe time when the heating is first started, does the temperature begin torise above 0.0°C? (c) Plot a curve showing the temperature as a functionof the elapsed time.

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An open container holds 0.550 kg of ice at -15.0°C. The
mass of the container can be ignored. Heat is supplied to the container
at the constant rate of 800.0 J/min for 500.0 min. (a) After how many
minutes does the ice start to melt? (b) After how many minutes, from
the time when the heating is first started, does the temperature begin to
rise above 0.0°C? (c) Plot a curve showing the temperature as a function
of the elapsed time.

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