Question:medium

Compared to homogeneous nucleation, the activation free energy required for heterogeneous nucleation is

Show Hint

Impurities and surfaces act as nucleation catalysts.

Updated On: Jun 29, 2026

Lower
Same
Higher
Independent of temperature

Show Solution

The Correct Option is A

Solution and Explanation

Was this answer helpful?

0

Top Questions on Phase Transformations

The figure shows variation of heat capacity with temperature for Nickel (0–800 K). If the curve shows discontinuity at point P, then this is due to:
- TS PGECET - 2026
- Metallurgical Engineering
- Phase Transformations
View Solution
At composition $C_a$, the free energy curve has a minimum. Which statement is correct?
- TS PGECET - 2026
- Metallurgical Engineering
- Phase Transformations
View Solution
Which one of the following statements is incorrect?
- TS PGECET - 2026
- Metallurgical Engineering
- Phase Transformations
View Solution
What happens in a eutectoid reaction on cooling?
- TS PGECET - 2026
- Metallurgical Engineering
- Phase Transformations
View Solution
Want to practice more? Try solving extra ecology questions todayView All Questions

Questions Asked in TS PGECET exam

The Eigenvalues of \(3\times 3\) real matrix A are 1, 2, 3 then \(A^{-1} =\)

TS PGECET - 2026
Linear Algebra

Let \(A=\begin{bmatrix} 1 & 1 & 0 \\ 0 & 1 & 1 \\ 0 & 0 & 1 \end{bmatrix}\). If \(u_1\) and \(u_2\) are column matrices such that \(Au_1 = \begin{bmatrix} 2 \\ 1 \\ 0 \end{bmatrix}\) and \(Au_2 = \begin{bmatrix} 1 \\ 0 \\ 1 \end{bmatrix}\), then \(u_1 - u_2\) is

TS PGECET - 2026
Matrices

Let \(a,b\) and \(c\) be real numbers. Suppose there exist real numbers \(x,y,z\) which are not all zero such that the system of equations \(x = cy + bz\), \(y = cx + az\) and \(z = bx + ay\) has a non-zero solution then \(\left(a+b+c\right)^2 =\)

TS PGECET - 2026
Determinants

For the function \(f(x)=\log x\), the number \(c\) strictly between \(e^2\) and \(e^3\) that satisfies \(f'(c)=\dfrac{f(e^3)-f(e^2)}{e^3-e^2}\) is

TS PGECET - 2026
Calculus