(Set-1) Heat, Temperature Thermodynamics

1. Their specific heat
2. Their latent heat
3. Their temperatures
4. Their area of contact

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1. Any energy transfer that does not involves temperature difference in some way is not heat.
2. Any energy transfer always requires a temperature difference.
3. On heating, the length and volume of the object remain exactly the same.
4. Whenever there is a temperature difference, heat is the only way of energy transfer.

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1. 1 degree on the celsius scale
2. 1 degree on the kelvin scale
3. 1 degree on the fahrenheit scale
4. 1 degree on the reaumur scale

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1. density
2. energy
3. mass
4. temperature

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1. Celsius
2. Fahrenheit
3. Reaumer
4. Kelvin

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1. relative temperature
2. absolute temperature
3. specific temperature
4. approximate temperature

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1. the temperature at which all molecular motion ceases.
2. at which water boils at 298 K.
3. at which liquid Helium boils.
4. at which the volume becomes zero.

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1. divide the given temperature by 273
2. subtract 273 from the given temperature
3. multiply the given temperature by 273
4. add 273 to the given temperature

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1. 574
2. 301
3. 273
4. 232

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1. 40 degree
2. -40 degree
3. -34 degree
4. -140 degree

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1. 318 K
2. 45 K
3. 62.8 K
4. 335.8 K

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1. 40.16
2. 38.69
3. 35.12
4. 32.36

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1. 104 degree F
2. 122 degree F
3. 102 degree F
4. 75 degree F

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1. 32
2. 0
3. 48
4. 37

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1. occurs only in solids
2. increases the weight of a material
3. decreases the density of a material
4. occurs at the same rate for all liquids and solids

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1. The Kelvin scale of temperature is called the absolute scale.
2. Visible light radiation has wavelength range of 400-700 mm
3. The capacity to do work is called power.
4. The wavelength of Y-rays is less than the wavelength of X-rays.

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1. 32
2. 22
3. 98
4. 42

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1. 0.8 x 10^-5 K^-1
2. 2.4 x 10^-5 K^-1
3. 3.2 x 10^-5 K^-1
4. 4.8 x 10^-5 K ^-1

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1. Only 1
2. 2 and 3
3. 1 and 3
4. Only 2

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1. mass of the body
2. mass and shape of the body
3. density of the body
4. mass, shape and temperature of the body

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1. Both A and R are true and R is the correct explanation of A
2. Both A and R are true but R is not the correct explanation of A.
3. A is true but R is false
4. A is false but R is true

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1. As ice melts, it expands uniformly upto 4 degree C.
2. Mercury thermometer works using the principle of expansion due to heating.
3. small gap is kept between two rails to allow for expansion due to heating.
4. The length of metallic wire increases when its temperature is increased.

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1. it is easily available
2. it has high specific gravity
3. it has high specific heat
4. it is a liquid substance

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1. its boiling point
2. its density
3. its viscosity
4. its surface tension

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1. an increase of surface area
2. an increase in humidity
3. a decrease in wind speed
4. a decrease of temperature

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1. It is the process of conversion of a liquid into gas.
2. It is the process of conversion of a solid into liquid.
3. It is the process of conversion of a solid into vapour.
4. It is the process of conversion of a gas into liquid.

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1. decreass
2. increases
3. may increase or decrease depending on the nature of solid
4. Dose not change

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1. liquids tend to evaporate at all temperatures
2. Liquids conduct more heat
3. Liquid expand too much when heated
4. Their containers also expand when heated

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1. steam pierces through the pores of body quickly
2. steam has latent heat
3. steam is gas and engulfs the body quickly
4. temperature of steam is higher

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1. The water freezes to ice and the level of ice comes down.
2. The water in the glass vessel summer freezes to ice.
3. The glass vessel breaks due to expansion as water freezes to ice.
4. The water does not freeze at all.

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1. Principle of thermal equilibrium
2. Principle of colours
3. Principle of calorimetry
4. Principle of vaporisation

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1. 400 cal
2. 550 cal
3. 1050 cal
4. 1200 cal

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1. specific heat capacity
2. mechanical equivalent of heat
3. latent heat of heat vaporisation
4. quenching

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1. Only 2
2. Only 1 and 3
3. Only 4
4. 1 and 4

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1. Convection
2. Evaporation
3. Revolution
4. Thermal expansion

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1. Conductance
2. Condensation
3. Radiation
4. Insulation

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1. conduction
2. convection
3. absorption
4. advection

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1. solid and liquids
2. solid and vacuum
3. gases and liquids
4. vacuum and gases

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1. temperature difference of two surfaces
2. area of the plate
3. thickness of the plate
4. material of the plate

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1. convection only
2. conduction and convection only
3. radiation and convection only
4. convection conduction and radiation

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1. They are made from animal fibres.
2. They are tightly woven.
3. They trap air.
4. They are thick.

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