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Which of the following statements about enthalpy is true?
enthalpy of a substance can be measured directly.
a chemical process must occur and then changes between the state of the reactants and the state of the products can be determined.
enthalpy is the gradual decline into disorder.
enthalpy is a measure of the change in pressure of a system.
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Which of the following statements about enthalpy is true?
enthalpy of a substance can be meas...
enthalpy of a substance can be meas...
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