1. Describe Qué relación de proporcionalidad existe entre el volumen y la temperatura cuando el número de moles y la presión permanecen constantes. 2. Analiza la ecuación de estado de los gases y describe Qué relación de proporcionalidad existen entre la presión y la temperatura cuando el número de moles y el volumen permanece en constante.

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.

b is the correct answer

mark me brainliest and hope this

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.