# Thermal Properties Of Matter

## The graph between temperature and pressure of a perfect gas is

A
hyperbola.
B
parabola.
C
a straight line parallel to pressure axes at .
D
a straight line intercepting the temperature axes at .
Medium
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## A glass is full of water at when it is (a) cooled (b) heated. Then, which one of the following is correct?

A
water level decreases, increases
B
water level increases, decreases
C
water level decreases, decreases
D
water over flow in both cases
Medium
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## At constant pressure, density of a gas is :

A
directly proportional to absolute temperature
B
inversely proportional to absolute temperature
C
independent of temperature
D
directly proportional to square root of absolute temperature
Medium
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## All gasses deviate from gas laws at

A
high pressure and low temperature.
B
low pressure and high temperature.
C
high pressure and high temperature.
D
low pressure and low temperature.
Medium
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## If the slope of P-T graph for a given mass of a gas increases, then the volume of the gas

A
Increases
B
Decreases
C
Does not change
D
May increase or decrease
Medium
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## An ideal gas is that which

A
Cannot be liquified
B
Can be easily liquified
C
Has strong inter molecular forces
D
Has a large size of molecules.
Medium
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