Concept Videos :-

#16 | Internal Energy (U) of Gas

#17 | Solved Example: 5

#18 | Solved Example: 6

#31 | First Law

#32 | Application of First Law to Adiabatic Process

#33 | Application of First Law to IsoThermal Process

#34 | Solved Example: 14

#35 | Application of First Law to Isochoric & Cyclic Processes

#36 | Solved Example: 15

#37 | Differential Form of First Law

Concept Questions :-

First law of thermodynamics

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Complete Question Bank

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Figure below shows two paths that may be taken by a gas to go from a state A to a state C. In process AB, 400 J of heat is added to the system and in process BC, 100 J of heat is added to the system. The heat absorbed by the system in the process AC will be-

(a) 380 J

(b) 500 J

(c) 460 J

(d) 300 J

NEET - 2015

Concept Videos :-

#16 | Internal Energy (U) of Gas

#17 | Solved Example: 5

#18 | Solved Example: 6

#31 | First Law

#32 | Application of First Law to Adiabatic Process

#33 | Application of First Law to IsoThermal Process

#34 | Solved Example: 14

#35 | Application of First Law to Isochoric & Cyclic Processes

#36 | Solved Example: 15

#37 | Differential Form of First Law

Concept Questions :-

First law of thermodynamics

To view Explanation, Please buy any of the course from below.

Complete Question Bank + Test Series

Complete Question Bank

Difficulty Level:

A thermodynamic system is taken through the cycle ABCD as shown in figure. Heat rejected by the gas during the cycle is

(a)2 pV (b)4 pV

(c)$\frac{1}{2}pV$ (d)pV

NEET - 2012

Concept Videos :-

#16 | Internal Energy (U) of Gas

#17 | Solved Example: 5

#18 | Solved Example: 6

#31 | First Law

#32 | Application of First Law to Adiabatic Process

#33 | Application of First Law to IsoThermal Process

#34 | Solved Example: 14

#35 | Application of First Law to Isochoric & Cyclic Processes

#36 | Solved Example: 15

#37 | Differential Form of First Law

Concept Questions :-

First law of thermodynamics

To view Explanation, Please buy any of the course from below.

Complete Question Bank + Test Series

Complete Question Bank

Difficulty Level:

An ideal gas goes from state A to state B

via three different processes as indicated

in the p-V diagram

If ${\mathrm{Q}}_{1},{\mathrm{Q}}_{2},{\mathrm{Q}}_{3}$ indicates the heat absorbed

by the gas along the three processes and

$\u2206{\mathrm{U}}_{1},\u2206{\mathrm{U}}_{2},\u2206{\mathrm{U}}_{3}$ indicates the change in

internal energy along the three processes

respectively, then

(a) ${\mathrm{Q}}_{1}>{\mathrm{Q}}_{2}>{\mathrm{Q}}_{3}\mathrm{and}\u2206{\mathrm{U}}_{1}=\u2206{\mathrm{U}}_{2}=\u2206{\mathrm{U}}_{3}$

(b) ${\mathrm{Q}}_{3}>{\mathrm{Q}}_{2}>{\mathrm{Q}}_{1}\mathrm{and}\u2206{\mathrm{U}}_{1}=\u2206{\mathrm{U}}_{2}=\u2206{\mathrm{U}}_{3}$

(c) ${\mathrm{Q}}_{1}={\mathrm{Q}}_{2}={\mathrm{Q}}_{3}\mathrm{and}\u2206{\mathrm{U}}_{1}\u2206{\mathrm{U}}_{2}\u2206{\mathrm{U}}_{3}$

(d) ${\mathrm{Q}}_{3}>{\mathrm{Q}}_{2}>{\mathrm{Q}}_{1}\mathrm{and}\u2206{\mathrm{U}}_{1}\u2206{\mathrm{U}}_{2}\u2206{\mathrm{U}}_{3}$

NEET - 2012

Concept Videos :-

#16 | Internal Energy (U) of Gas

#17 | Solved Example: 5

#18 | Solved Example: 6

#31 | First Law

#32 | Application of First Law to Adiabatic Process

#33 | Application of First Law to IsoThermal Process

#34 | Solved Example: 14

#35 | Application of First Law to Isochoric & Cyclic Processes

#36 | Solved Example: 15

#37 | Differential Form of First Law

Concept Questions :-

First law of thermodynamics

To view Explanation, Please buy any of the course from below.

Complete Question Bank + Test Series

Complete Question Bank

Difficulty Level:

The internal energy change in a system that has absorbed 2 kcal of heat and done 500 J of work is

(a) 8900 J (b) 6400 J

(c) 5400 J (d) 7900 J

NEET - 2009

Concept Videos :-

#16 | Internal Energy (U) of Gas

#17 | Solved Example: 5

#18 | Solved Example: 6

#31 | First Law

#32 | Application of First Law to Adiabatic Process

#33 | Application of First Law to IsoThermal Process

#34 | Solved Example: 14

#35 | Application of First Law to Isochoric & Cyclic Processes

#36 | Solved Example: 15

#37 | Differential Form of First Law

Concept Questions :-

First law of thermodynamics

To view Explanation, Please buy any of the course from below.

Complete Question Bank + Test Series

Complete Question Bank

Difficulty Level:

A system performs work Δ*W* when an amount of heat is Δ*Q* added to the system, the corresponding change in the internal energy is Δ*U*. A unique function of the initial and final states (irrespective of the mode of change) is -

(1) Δ*Q*

(2) Δ*W*

(3) Δ*U* and Δ*Q *

(4) Δ*U*

Concept Videos :-

#16 | Internal Energy (U) of Gas

#17 | Solved Example: 5

#18 | Solved Example: 6

#31 | First Law

#32 | Application of First Law to Adiabatic Process

#33 | Application of First Law to IsoThermal Process

#34 | Solved Example: 14

#35 | Application of First Law to Isochoric & Cyclic Processes

#36 | Solved Example: 15

#37 | Differential Form of First Law

Concept Questions :-

First law of thermodynamics

To view Explanation, Please buy any of the course from below.

Complete Question Bank + Test Series

Complete Question Bank

Difficulty Level:

A container of volume 1*m*^{3} is divided into two equal compartments by a partition. One of these compartments contains an ideal gas at 300 *K*. The other compartment is vaccum. The whole system is thermally isolated from its surroundings. The partition is removed and the gas expands to occupy the whole volume of the container. Its temperature now would be -

(1) 300 *K*

(2) 239 *K *

(3) 200* K*

(4) 100 *K *

Concept Videos :-

#16 | Internal Energy (U) of Gas

#17 | Solved Example: 5

#18 | Solved Example: 6

#31 | First Law

#32 | Application of First Law to Adiabatic Process

#33 | Application of First Law to IsoThermal Process

#34 | Solved Example: 14

#35 | Application of First Law to Isochoric & Cyclic Processes

#36 | Solved Example: 15

#37 | Differential Form of First Law

Concept Questions :-

First law of thermodynamics

To view Explanation, Please buy any of the course from below.

Complete Question Bank + Test Series

Complete Question Bank

Difficulty Level:

110 *J *of heat is added to a gaseous system, whose internal energy change is 40 *J*, then the amount of external work done is

(1) 150 *J*

(2) 70 *J*

(3) 110 *J*

(4) 40 *J*

Concept Videos :-

#16 | Internal Energy (U) of Gas

#17 | Solved Example: 5

#18 | Solved Example: 6

#31 | First Law

#32 | Application of First Law to Adiabatic Process

#33 | Application of First Law to IsoThermal Process

#34 | Solved Example: 14

#35 | Application of First Law to Isochoric & Cyclic Processes

#36 | Solved Example: 15

#37 | Differential Form of First Law

Concept Questions :-

First law of thermodynamics

To view Explanation, Please buy any of the course from below.

Complete Question Bank + Test Series

Complete Question Bank

Difficulty Level:

When the amount of work done is 333 *cal* and change in internal energy is 167 *cal*, then the heat supplied is** -**

(1) 166 *cal*

(2) 333 *cal*

(3) 500 *cal*

(4) 400 *cal*

Concept Videos :-

#16 | Internal Energy (U) of Gas

#17 | Solved Example: 5

#18 | Solved Example: 6

#31 | First Law

#32 | Application of First Law to Adiabatic Process

#33 | Application of First Law to IsoThermal Process

#34 | Solved Example: 14

#35 | Application of First Law to Isochoric & Cyclic Processes

#36 | Solved Example: 15

#37 | Differential Form of First Law

Concept Questions :-

First law of thermodynamics

To view Explanation, Please buy any of the course from below.

Complete Question Bank + Test Series

Complete Question Bank

Difficulty Level:

First law thermodynamics states that

(1) System can do work

(2) System has temperature

(3) System has pressure

(4) Heat is a form of energy

Concept Videos :-

#16 | Internal Energy (U) of Gas

#17 | Solved Example: 5

#18 | Solved Example: 6

#31 | First Law

#32 | Application of First Law to Adiabatic Process

#33 | Application of First Law to IsoThermal Process

#34 | Solved Example: 14

#35 | Application of First Law to Isochoric & Cyclic Processes

#36 | Solved Example: 15

#37 | Differential Form of First Law

Concept Questions :-

First law of thermodynamics

To view Explanation, Please buy any of the course from below.

Complete Question Bank + Test Series

Complete Question Bank

Difficulty Level: