Class 11 · ICSE · Chemistry

Chemical Thermodynamics

Systems and surroundings, internal energy, enthalpy, Hess's law, entropy and Gibbs energy.

Questions

6 questions in this chapter.

Answer available
Class 11 · Chemistry · Chemical Thermodynamics
Distinguish between an open, a closed and an isolated system, with one example of each.
3 marksMediumShort answer
Answer available
Class 11 · Chemistry · Chemical Thermodynamics
State the relation between Gibbs energy, enthalpy and entropy, and the condition for a spontaneous process.
3 marksMediumShort answer
Answer available
Class 11 · Chemistry · Chemical Thermodynamics
Calculate the enthalpy change of a reaction whose bond enthalpies give 1,200 kJ absorbed to break bonds and 1,500 kJ released to form them.
3 marksMediumNumerical
Answer available
Class 11 · Chemistry · Chemical Thermodynamics
Define enthalpy of formation and enthalpy of combustion.
3 marksMediumShort answer
Answer available
Class 11 · Chemistry · Chemical Thermodynamics
State Hess's law and give one use of it.
3 marksMediumShort answer
Answer available
Class 11 · Chemistry · Chemical Thermodynamics
What is entropy, and how does it change when a solid melts and when a gas is compressed?
3 marksMediumShort answer