CBSE > Class 11 > Physics | CBSE Board | Homework Help

Hess's law states that the change of enthalpy in a chemical reaction (the heat of reaction at constant pressure) is independent of the pathway between the initial and final states.

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What is Gibbs energy?

Posted by Ankit Singh 7 years, 1 month ago

CBSE > Class 11 > Physics

7 answers

Ankit Singh 7 years, 1 month ago

Ok ??

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Priya Dharshini ☺☺ 7 years, 1 month ago

I just asked it for fun.no need to say sorry

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Ankit Singh 7 years, 1 month ago

?????

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Ankit Singh 7 years, 1 month ago

Its Chemestrty priya

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Ankit Singh 7 years, 1 month ago

Sorry galti se likha gya

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Priya Dharshini ☺☺ 7 years, 1 month ago

By the way this is not physics subject ??

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Priya Dharshini ☺☺ 7 years, 1 month ago

Gibbs energy is a thermodynamic potential that can be used to calculate the maximum of reversible work that may be performed by a thermodynamic system at a constant temperature and pressure.

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Prove that M=m1m2u1^2/2(m1+m2). If a body of mass M1 moving with velocity u1 suffers perfectly Inelastic collision with another stationary body of mass M2

Posted by Kaustav Hazarika 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

On what factors the ability of force to rotate a rigid body depends

Posted by Shravani Py 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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Collision of one dimension

Posted by Rohin Jaswal 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

how to find work done from force time graph

Posted by Sagarika Kalita 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Kartik ? 7 years, 1 month ago

Sorry, Don't know of any way to do so. But you can find the work done from a force - displacement graph. Whereas on a force-time graph you can calculate the variation in force over time or by calculating the area ,the change in momentum/impulse.

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Derivative

Posted by Ishrat Rafi 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Abhi Niket Raj 7 years, 1 month ago

Derivative of which

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Find out volumetric strain of a spherical body whose diameter D=4cm if increasement in diameter is 0.2 mm

Posted by Aryan Sharma 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

How to measure room temperature

Posted by Raheem Hasan 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Priya Dharshini ☺☺ 7 years, 1 month ago

A simple thermometer with a coloured alcohol is used to measure the room temperature. Or there are few apps in phone u can download it and measure the room temperature

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IF in a grass fill with water (glass hight =3m) , at half distance a small hole (r =0.1cm) water come out then find range & water path when touch the ground . (g=10m/s^2 )

Posted by Raj Hindu 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

anyone know vim editor programmimg in linux

Posted by Nancy Rajput 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

If the breaking force for a given wire is F, then the breaking force of 2 wires of same magnitude will be

Posted by Aman Kumar 7 years, 1 month ago

CBSE > Class 11 > Physics

3 answers

Aman Kumar 7 years, 1 month ago

Thanks yr..

1Thank You

Nancy Rajput 7 years, 1 month ago

because if thickness is doubled restoring force is also doublef

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Nancy Rajput 7 years, 1 month ago

its doubled

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to accept the two files name and create the new file containing the content of both file provided as a input in linux

Posted by Nancy Rajput 7 years, 1 month ago

CBSE > Class 11 > Physics

7 answers

Ankit Singh 7 years, 1 month ago

I have no idea about linux

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Nancy Rajput 7 years, 1 month ago

no i am maths student

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Aman Kumar 7 years, 1 month ago

Becoz I thought you are Bio students... But never mind u can ask question..

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Priya Dharshini ☺☺ 7 years, 1 month ago

Linux is taught this year ? Which chapter it is present ?

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Nancy Rajput 7 years, 1 month ago

why

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Aman Kumar 7 years, 1 month ago

Abhi bhi I Have a doubt,.. R u CS student??

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Aman Kumar 7 years, 1 month ago

No.. Idea about Linux.....

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What is the gravitational constant

Posted by Renu Sharma 7 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Priyanshu Kaushal 7 years, 1 month ago

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Aman Kumar 7 years, 1 month ago

In simple word,,... Universal gravitational constant as its name suggests, in whole universe the gravitational value is same to that...

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What is latent heat of vapourisation

Posted by Anant Garg 7 years, 1 month ago

CBSE > Class 11 > Physics

3 answers

Nancy Rajput 7 years, 1 month ago

The amount of heat energy required to change 1 kg of liquid to gas at its boiling point at a constant atmospheric temperature is called latent heat of vapourisation. Steam at 373 degree k contains more heat energy in the form of latent heat of vapourization. This causes more burns than boiling water at the same temperature

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Aman Kumar 7 years, 1 month ago

A good answer.... ?

3Thank You

∂Αяѕнαиαα ყα∂Αѵ ??? 7 years, 1 month ago

The amount of heat required to change the state of unit mass of substance from liquid to vapour at its boiling point is called laten heat of vaporisation.

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What is latent heat of vapourisatikn

Posted by Anant Garg 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

If we push a wall the displacement is zero hence no work done but where went that force or energy with we had used in pushing that wall?

Posted by Ankit Singh 7 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Říý@ ?? 7 years, 1 month ago

The energy is not sufficient ro push he wall. So, zero wark is done. The wall exerts an equal and opposite force back to us.

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Sajid Ali 7 years, 1 month ago

Every force has an equal and opposite reaction.So when we push the wall , the force will come back to our body.

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A mass of 0.5 kg is weighed on a balance at the top of the tower 20 m high. The mass is then suspended from the pan of the balance from a fine wire 20 m long and is reweighed. Find the change in weight . radius of earth= 6400 km

Posted by Akshita Agarwal 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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Why the liquid state of water not found

Posted by Raman Kr 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Ideal fluid

Posted by Raman Kr 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is latent heat of fusion

Posted by Anant Garg 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Priya Dharshini ☺☺ 7 years, 1 month ago

the change in its enthalpy resulting from providing energy, typically heat, to a specific quantity of the substance to change its state from a solid to a liquid, at constant pressure

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Why does the top of a cloud of smoke hold together for hours? (Kinetic theory of gases and radiation.)

Posted by Anjushree Mate 7 years, 1 month ago

CBSE > Class 11 > Physics