Statement 1: An endothermic reaction can be spontaneous
Statement 2: Both the enthalpy and the entropy changes affect the Gibbs free-energy change of the reaction.

Both Statement 1 and Statement 2 are correct and Statement 2 is the correct explanation of Statement 1.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both Statement 1 and Statement 2 are correct and Statement 2 is not the correct explanation of Statement 1.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Statement 1 is correct but Statement 2 is not correct.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Statement 1 is not correct but Statement 2 is correct.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both the Statement 1 and Statement 2 are not correct.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C
Both Statement 1 and Statement 2 are correct and Statement 2 is not the correct explanation of Statement 1.

For a spontaneous reaction :

$△ G \to (-) v e$

i.e. $△ H - T △ S \to (-) v e$

$△ G$ can be negative if :

a) $△ H \to (-) v e$
$△ S \to (+) v e$

b) $△ H \to (+) v e$
$△ T \to (+) v e$
$T △ S > △ H$

Hence, statement 1 is correct.

eg- ice is melting at room temperature

Also, statement 2 is correct as change in gibbs energy $(△ G)$ depends on enthalpy change $(△ H)$ and entropy change $(△ S)$

Statement 2 doesn't explain statement 1

eg- ice cube melts at room temperature because of increase of entropy overcomes the change to a higher energy state.
Hence, Statement 2 is not the correct explanation of statement 1

The option is B.

Suggest Corrections

Similar questions

Q. Choose the correct option based on the statements given:

Statement 1: Carbon always share electrons to form a covalent bond with other elements.

Statement 2:

C^{4 +}

and

C^{4 -}

ions are highly unstable.

Choose the correct option.

Statement $1 : (p \land \sim q) \land (\sim p \land q)$ is a fallacy.

Statement $2 : (p \Rightarrow q) \Leftrightarrow (\sim q \Rightarrow\sim p)$ is a tautology.

Choose the correct option based on the statements given below:

Statement 1: Carbon always shares electrons or forms a covalent bond with other elements.

Statement 2: $C^{4 +}$ and $C^{4 -}$ ions are highly unstable.

Statement1: In absence of air, projectile motion is always a 2D motion.
Statement2: In absence of any external force in 3D space, at any time during its flight Projectile's velocity has only two components.

Q. Statement - 1 : For a particle undergoing rectilinear motion with constant acceleration, the average velocity cannot be equal for two different time intervals.
Statement -2 : The average velocity of particle moving with constant acceleration in a time interval is

\frac{\to u + \to v}{2}

,
where

\to u

is the initial velocity and

\to v

is the final velocity.

Join BYJU'S Learning Program

Statement 1: An endothermic reaction can be spontaneous Statement 2: Both the enthalpy and the entropy changes affect the Gibbs free-energy change of the reaction.

Statement 1: An endothermic reaction can be spontaneous
Statement 2: Both the enthalpy and the entropy changes affect the Gibbs free-energy change of the reaction.