Which of the following has the fastest process of heat transfer?

(a)

Conduction

(b)

convection

(c)

Radiation

(d)

all the above

At what temperature are Celsius and Fahrenheit equal

(a)

40°

(b)

-40°

(c)

0⁰

(d)

100°

In which process heat is transferred directly from one molecule to other?

(a)

conduction

(b)

convection

(c)

Radiation

(d)

all the above

Temperature is a property which determines

(a)

amount of heat a body contains

(b)

total absolute energy a body has

(c)

direction of flow of heat

(d)

thermal energy

SI unit of temperature is

(a)

celsius

(b)

fahrenheit

(c)

kelvin

(d)

none

SI unit of heat is

(a)

calorie

(b)

joule

(c)

kilo calorie

(d)

kelvin

All the substances will undergo the following changes like _____ when heated.

(a)

increase in temperature

(b)

expansion of substance

(c)

change of state

(d)

all the above

Thermal expansion at particular temperature is less in

(a)

solid

(b)

liquid

(c)

gas

(d)

all above

Increase in area due to heating is called

(a)

Linear expansion

(b)

Superficial expansion

(c)

Cubical expansion

(d)

real expansion

Change in volume of a solid during heating is

(a)

Linear expansion

(b)

Superficial expansion

(c)

Cubical expansion

(d)

apparent expansion

Linear expansion is the change in _____ when object is heated or cooled.

(a)

length

(b)

area

(c)

volume

(d)

density

Fundamental laws of gases are

(a)

Boyle's law

(b)

Charles's law

(c)

Avogadro

(d)

all the above

At constant temperature volume is inversely proportional to pressure of a gas is known as

(a)

Boyle's law

(b)

Charles

(c)

Avogadro

(d)

None

According to Charles's law

(a)

P ∝ \(\frac{1}{V}\)

(b)

V ∝ T

(c)

V ∝ n

(d)

all the above

Gas laws state the relationship between _____ properties of gas.

(a)

pressure

(b)

volume

(c)

Temperature & mass

(d)

all the above