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Applications of the first law

Applications of the first law

Assessment

Interactive Video

•

Physics

•

11th - 12th Grade

•

Practice Problem

•

Hard

Created by

Wayground Content

FREE Resource

The video tutorial explores various thermodynamic processes involving gases, such as pressure-volume work, free expansion, and the first law of thermodynamics. It delves into concepts like enthalpy, extensive and intensive properties, and heat capacity, providing a comprehensive understanding of these topics. The tutorial also explains the relationship between Cp and Cv for ideal gases, highlighting key principles and equations.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the piston in a cylinder when external pressure is greater than internal pressure?

The piston moves inward.

The piston remains stationary.

The piston moves outward.

The piston oscillates.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a reversible process, how is the system brought back to its initial state?

By applying a large external force.

By rapidly changing the temperature.

By making infinitesimal changes.

By increasing the volume suddenly.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the work done during free expansion of a gas?

Work depends on the temperature.

No work is done.

Negative work is done.

Positive work is done.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is enthalpy change related to heat absorbed at constant pressure?

It is equal to the change in volume.

It is equal to the change in temperature.

It is equal to the heat absorbed.

It is equal to the work done.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the enthalpy change for an exothermic reaction?

Positive

Depends on the pressure

Negative

Zero

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an intensive property?

Volume

Enthalpy

Mass

Temperature

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the boiling point of water when its quantity is halved?

It increases.

It decreases.

It becomes zero.

It remains the same.

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