Physical Chemistry

Stoichiometry, equilibrium, kinetics, thermodynamics, and solutions.

Quizzes

Questions

eBooks

Articles

Likes

Views

More topics in Chemistry

All

Chemistry

Analytical Chemistry

02 Quizzes

Environmental Chemistry

02 Quizzes

Inorganic Chemistry

02 Quizzes

Organic Chemistry

02 Quizzes

Physical Chemistry

02 Quizzes

Explore

QUESTION NO 01

Entropy of an isolated system in a spontaneous process?

Answer: Increases or stays the same

Second law: entropy of an isolated system does not decrease.

Shahzad Mahota @shahzad-mahota

302 Quizzes

2930 Questions

00 Likes

QUESTION NO 02

Buffer solutions resist changes in?

Answer: pH

Buffers contain a weak acid/base conjugate pair that stabilizes pH.

Shahzad Mahota @shahzad-mahota

302 Quizzes

2930 Questions

00 Likes

QUESTION NO 03

pH of a neutral aqueous solution at 25 °C is?

Answer: 7

At 25 °C, [H⁺] = 1 × 10⁻⁷ M gives pH 7.

Shahzad Mahota @shahzad-mahota

302 Quizzes

2930 Questions

00 Likes

QUESTION NO 04

A catalyst increases rate by?

Answer: Lowering activation energy

Catalysts provide a lower-Ea pathway; Keq is unchanged.

Shahzad Mahota @shahzad-mahota

302 Quizzes

2930 Questions

00 Likes

QUESTION NO 05

Buffer solutions resist changes in?

Answer: pH

Buffers contain a weak acid/base conjugate pair that stabilizes pH.

Shahzad Mahota @shahzad-mahota

302 Quizzes

2930 Questions

00 Likes

QUESTION NO 06

Osmotic pressure of a dilute solution is given by?

Answer: π = CRT

van't Hoff: π = CRT for dilute solutions.

Shahzad Mahota @shahzad-mahota

302 Quizzes

2930 Questions

00 Likes

QUESTION NO 07

Entropy of an isolated system in a spontaneous process?

Answer: Increases or stays the same

Second law: entropy of an isolated system does not decrease.

Shahzad Mahota @shahzad-mahota

302 Quizzes

2930 Questions

00 Likes

QUESTION NO 08

Enthalpy change at constant pressure equals?

Answer: Heat exchanged (qp)

ΔH = qp for a constant-pressure process.

Shahzad Mahota @shahzad-mahota

302 Quizzes

2930 Questions

00 Likes

QUESTION NO 09

Hess's law is based on?

Answer: Path independence of enthalpy (state function)

ΔH depends only on initial and final states.

Shahzad Mahota @shahzad-mahota

302 Quizzes

2930 Questions

00 Likes

QUESTION NO 10

The ideal gas equation is?

Answer: PV = nRT

Ideal gases obey PV = nRT.

Shahzad Mahota @shahzad-mahota

302 Quizzes

2930 Questions

00 Likes

Quiz Categories

Explore

Content

Create

Discover

Account

More

Physical Chemistry

More topics in Chemistry

All

Analytical Chemistry

Environmental Chemistry

Inorganic Chemistry

Organic Chemistry

Physical Chemistry

Explore

Entropy of an isolated system in a spontaneous process?

Buffer solutions resist changes in?

pH of a neutral aqueous solution at 25 °C is?

A catalyst increases rate by?

Buffer solutions resist changes in?

Osmotic pressure of a dilute solution is given by?

Entropy of an isolated system in a spontaneous process?

Enthalpy change at constant pressure equals?

Hess's law is based on?

The ideal gas equation is?

Physical Chemistry

More topics in Chemistry

All

Analytical Chemistry

Environmental Chemistry

Inorganic Chemistry

Organic Chemistry

Physical Chemistry

Explore

Entropy of an isolated system in a spontaneous process?

Explanation

Buffer solutions resist changes in?

Explanation

pH of a neutral aqueous solution at 25 °C is?

Explanation

A catalyst increases rate by?

Explanation

Buffer solutions resist changes in?

Explanation

Osmotic pressure of a dilute solution is given by?

Explanation

Entropy of an isolated system in a spontaneous process?

Explanation

Enthalpy change at constant pressure equals?

Explanation

Hess's law is based on?

Explanation

The ideal gas equation is?

Explanation