Home

What is the correct answer?

4

Heat of reaction at constant volume is identified with __________ change.

A. Enthalpy

B. Internal energy

C. Either (A) or (B)

D. Neither (A) nor (B)

Correct Answer :

B. Internal energy


Related Questions

Generation of heat by friction is an example of a/an __________ change. Which of the following is Virial equation of state? First law of thermodynamics is mathematically stated as Joule-Thomson effect i.e., a throttling process is a constant __________… For spontaneous changes in an isolated system (S = entropy) The change in Gibbs free energy for vaporisation of a pure substance is Degrees of freedom at triple point will be Pick out the correct statement. During Joule-Thomson expansion of gases Charles' law for gases states that The value of gas constant 'R' is Fugacity co-efficient of a substance is the ratio of its fugacity to If different processes are used to bring about the same chemical reaction,… A gas can be liquefied by pressure alone only, when its temperature is… Solubility of a substance which dissolves with an increase in volume and… The expression for entropy change given by, ΔS = nR ln (V2/V1) +… When dilute aqueous solutions of two salts are mixed, the process is associated… A gas mixture of three components is brought in contact with a dispersion… Sublimation temperature of dry ice (solid CO2) is __________ °C. Isobaric process means a constant process. Entropy is a/an The number of degrees of freedom at the triple point of water is The work done in an adiabatic change in a particular gas depends upon… Standard temperature and pressure (S.T.P.) is If the pressure on 100 c.c. of air is halved, then its volume (at the… In the reaction, represented by, 2SO2 + O2 2SO3; ΔH = - 42 kcal;… In the equation, PVn = constant, if the value of n is in between 1 and… The internal energy of an incompressible fluid depends upon its Gibbs free energy per mole for a pure substance is equal to the (∂H/∂T)P is the mathematical expression for