20.0 g of a solid substance X initially at 25.0 C is heated to its melting...

 

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20.0 g of a solid substance X initially at 25.0 °C is heated to its melting point at 75.0 °C. Heat is continuously added until the substance completely melts. Calculate the total heat added (in kJ) to the substance during this process. C = 3.47 MM(X) = 42.5- AHfus 3.5- = g mol kJ mol AHvap = 50.6 kJ mol 20.0 g of a solid substance X initially at 25.0 °C is heated to its melting point at 75.0 °C. Heat is continuously added until the substance completely melts. Calculate the total heat added (in kJ) to the substance during this process. C = 3.47 MM(X) = 42.5- AHfus 3.5- = g mol kJ mol AHvap = 50.6 kJ mol