How did kepler describe the planets’ orbits

In an elliptical orbit with the sun at one focus of the ellipse.

Explanation:

This means that a planet's orbital shape is an ellipse or oval.

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.