Which action could cause a sample of liquid to boil? A. Decreasing the temperature of the liquid

B. Decreasing the sample size of the liquid

C. Decreasing the volume of the liquid

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D. Decreasing the pressure on the liquid

D. Decreasing the pressure on the liquid.

Explanation:

I took the test

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.