Question

From the following mentioned variables, select the variable which is only dependent on the initial and final state of the system.
1-Heat capacity
2-Heat
3-Enthalpy
4-Work

Answer 1

The variable that depends on other factors that are measured. These variables are expected to change as a result of an experimental manipulation of the independent variable or variables. It is the presumed effect.

Independent Variable

The variable that is stable and unaffected by the other variables you are trying to measure. It refers to the condition of an experiment that is systematically manipulated by the investigator. It is the presumed cause.

Answer 2

The correct answer to the given question from the mentioned options is Enthalpy (option 3).

• The variables in the choice are distinguished from one another by whether they are solely reliant on their starting and final states or whether they are dependent on factors throughout their whole path or process.
• Because it is dependent on temperature and pressure, which are both examples of state functions, enthalpy is determined by the beginning and ultimate states.
• Heat, heat capacity, and work are examples of path functions since they are dependent on parameters throughout the process or path.
• As a result, enthalpy is a state-dependent variable.