Recent questions tagged structure of matter and molecule

+1 vote

1 answer

Give the applications of centrifugation.

asked Mar 31, 2019 in Class 12 by kratos

+2 votes

1 answer

Explain the process of "melting" and latent heat of fusion.

asked Mar 3, 2019 in Class 10 by kratos

+3 votes

1 answer

A few substances are arranged in the increasing order of ‘forces of attraction’ between their particles.

asked Feb 26, 2019 in Class 9 by kratos

+1 vote

1 answer

What happens to the entropy, when liquid is converted into vapours?

asked Feb 20, 2019 in JEE by kratos

+2 votes

1 answer

The latent heat of vaporisation of water at 100°c is 540 Cal/g. Calculate the entropy increase when one mole of water at 100°c is evaporated?

asked Jan 22, 2019 in Class 12 by kratos

+1 vote

1 answer

why does the temperature remain const during melting or boiling

asked Jan 18, 2019 in Chemistry by kratos

+2 votes

1 answer

Suggest a method to liquefy atmospheric gases.

asked Jan 14, 2019 in Class 9 by kratos

+3 votes

1 answer

Draw a neat labeled diagram of TMV

asked Jan 14, 2019 in Class 12 by kratos

+1 vote

1 answer

Draw a neat labeled diagram of nucleus

asked Jan 11, 2019 in Class 12 by kratos

+2 votes

1 answer

A certain liquid has a melting point of –50 C and a boiling point of 150C. A thermometer is designed with this liquid

asked Jan 2, 2019 in Class 12 by kratos

+1 vote

1 answer

Why is ice at 273 K more effective in cooling than water at the same temperature?

asked Dec 30, 2018 in Class 9 by kratos

+2 votes

1 answer

You observe that carbon dioxide sublimes. Which of the following statements about the signs of this process is/are true?

asked Dec 27, 2018 in JEE by kratos

+3 votes

1 answer

For determing the melting point of ice we should prefer :

asked Dec 26, 2018 in Class 11 by kratos

+1 vote

1 answer

Which one of the following sets of phenomena would increase on raising the temperature?

asked Dec 14, 2018 in Class 9 by kratos

+1 vote

1 answer

Why is ice at 273 K. More effective in cooling than water at the same temperature?

asked Dec 7, 2018 in Class 9 by kratos

+2 votes

1 answer

State the differences between solid, liquid and gas.

asked Dec 3, 2018 in Class 9 by kratos

+1 vote

1 answer

Crystallisation is not required due to the advent of which of the following new technique.

asked Nov 18, 2018 in Class 11 by kratos

+2 votes

1 answer

The high density of water compared to ice is due to :

asked Nov 16, 2018 in Class 12 by kratos

+2 votes

1 answer

Muscle A and muscle B are the same size, but muscle A is capable of much finer control than muscle B.

asked Oct 20, 2018 in JEE by kratos

+2 votes

1 answer

At 273 K both ice and water co-exist. Find statement true or false

asked Oct 20, 2018 in Class 12 by kratos

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