Thermal Properties of Matter Test

Result

Thermal Properties of Matter Test - 5

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Weekly Quiz Competition

Question 1
1 / -0

A brass spring has a spring constant k. When the spring is heated, the spring constant will

A
remain the same

B
decrease

C
increase, then decrease

D
increase

Solution

on heating spring will be expand

k∝1/l
Question 2
1 / -0

Which of the following statement(s) is/are true?

(I) Every substance contains heat.

(II) For heat to flow between two substances, they must be at different temperatures.

(III) The internal energy of a substance is equal to the kinetic energy of the molecules in the substance.

A
I and II only

B
II and III only

C
III only

D
II only

Solution

Heat is the form of energy that is transferred from one body to another as the result of a difference in temperature
Question 3
1 / -0

Find the wrong statement about specific heat of a material

A
Constant for a material

B
Has units as J/kg-K.

C
is extensive property

D
Heat capacity per unit mass

Solution

extensive properties (i.e. mass) are dependent upon the amound of a substance, while intensive properties (i.e. density) are independent of quantity.