Question

Which statement is incorrect?

*At constant pressure, H = E + PV
*The thermodynamic symbol for entropy is S.
*Gibbs free energy is a state function.
*For an endothermic process, H is negative.
*If the work done by the *system is greater than the heat absorbed by the system, E is negative.​

Answer 1

Answer:

*If the work done by the *system is greater than the heat absorbed by the system, E is negative. this is incorrect

Answer 2

THE INCORRECT STATEMENT IS "FOR AN ENDOTHERMIC PROCESS, H IS NEGATIVE".

Explanation:

• When energy is absorbed by a substance it is called endothermic process. The value of enthalpy for endothermic reaction is positive.
• The enthalpy can be determined by the formula $H=E+PV$.
• E (heat) is positive if heat flows in the system and is negative when flows out of it.
• Entropy is denoted by the symbol S.
• If work done is greater than heat absorbed, then heat will be negative.
• Therefore, statement "FOR AN ENDOTHERMIC PROCESS, H IS NEGATIVE" is incorrect.