Question

What is the effect on chemical properties and physical properties of water when temperature is changed ?

A. Chemical properties of water remain same but the physical state changes with change in temperature.  
B. Chemical properties of water change with change in temperature but physical properties remain same.
C. There is no effect on chemical or physical properties of water when temperature is changed.
D. Both chemical and physical properties of water change with change in temperature.
Answer :   Chemical properties of water remain same but the physical state changes with change in temperature.
Solution :
When temperature is changed, water is converted to ice or steam depending upon the temperature. There is no change in the chemical properties of water and only physical state changes.

Releted MCQ Question on
Physical Chemistry >> States of Matter Solid, Liquid and Gas

Releted Question 1

Equal weights of methane and oxygen are mixed in an empty container at $${25^ \circ }C.$$  The fraction of the total pressure exerted by oxygen is

A. $$\frac{1}{3}$$
B. $$\frac{1}{2}$$
C. $$\frac{2}{3}$$
D. $$\frac{1}{3} \times \frac{{273}}{{298}}$$
Releted Question 2

The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is

A. Critical temperature
B. Boyle temperature
C. Inversion temperature
D. Reduced temperature
Releted Question 3

The ratio of root mean square velocity to average velocity of a gas molecule at a particular temperature is

A. 1.086 : 1
B. 1 : 1.086
C. 2 : 1.086
D. 1.086 : 2
Releted Question 4

Helium atom is two times heavier than a hydrogen molecule. At $$298 K,$$  the average kinetic energy of a helium atom is

A. two times that of a hydrogen molecule.
B. same as that of a hydrogen molecule.
C. four times that of a hydrogen molecule.
D. half that of a hydrogen molecule.

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States of Matter Solid, Liquid and Gas


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