Chemistry, 05.03.2021 14:00, sciencefacts4504

If a substance had 32kJ to raise its temperature to its melting point and then needed 22kJ to melt it completely and then another 150kJ to raise its temperature to room temperature, what is its internal energy?

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If a substance had 32kJ to raise its temperature to its melting point and then needed 22kJ to melt i...