11th Physics Monthly Test - 3 ( Heat and Thermodynamics )

MABS Institution

11th Physics Monthly Test - 3 ( Heat and Thermodynamics )-Aug 2020

Time : 2.00 Hours

Part - A

Generic 2 - Answer All Question

What is an equation of state? Give an example

What is Thermodynamics?

Define Emissivity.

What is latent heat of sublimation?

What do you meant by change of state of a substance?

What is a principle of calorimetry?

Is it possible that there is a change in temperature of a body without giving/taking heat to from it?

Give the sign convention for Q and W.

Obtain an ideal gas law from Boyle’s and Charles’ law.

What is sublimation?

A rod of metal-1 of length 50.0 cm elongates by 0.10 cm when it is heated from O°C to 100°C. Another rod of metal-2 of length 80.0 cm elongates by 0.08 cm for the same rise in temperature. A third rod of length 50.0 cm, made by welding pieces of rod 1 rad and 2 rad placed end to end, elongates by 0.03 cm when Itis heated from 0^oC to 50°C. Then what is the length of metal-1 in the third rod at O°C?

What is Wien’s law?

Can water be boiled without heating?

In a petrol engine, (internal combustion engine) air at atmospheric pressure and temperature of 20°C is compressed in the cylinder by the piston to 1/8 of its original volume. Calculate the temperature of the compressed air. (For air \(\gamma \) = 1.4)

Part - B

Generic 3 - Answer All Question

We often have the experience of pumping air into bicycle tyre using hand pump.
Consider the air inside the pump as a thermodynamic system having volume V at atmospheric pressure and room temperature, 27°C. Assume that the nozzle of the tyre is blocked and you push the pump to a volume 1/4 of V. Calculate the final temperature of air in the pump? (For air , since the nozzle is blocked air will not flow into tyre and it can be treated as an adiabatic compression).

Write the important properties of thermal radiations.

When 0.45 kg of ice of 0°Cmixed with 0.9 kg of water at 55°C in a container, the resulting temperature is 10°C. Calculate the heat of fusion of ice.

Write the equation of state for an ideal gas.

What is the specific heat of a gas in an adiabatic process?

Draw and explain the distribution of radiation intensity.

Define cyclic processes

What amount of heat must be supplied to 2.0 x 10^-2 kg of nitrogen (at room temperature) to raise its temperature by 45^°C at constant pressure? (Molecular mass of N² = 28, R = 8.3 J mol^-1k^-1)

Applying first law of thermodynamics, write relation between P & T.

State the factors on which the conduction of heat through a substance depends.

Write any 3 phenomena which are based on thermal convection.

Calculate the heat required to convert 0.6 kg of ice at - 20°C, kept in a calorimeter to steam at 100°C atmospheric pressure, Given the specific heat capacity (L_ice) of lee= 2100 Jkg^-1K^-1.

What is specific heat of a gas in an isothermal process?

An electric heater supplies heat to a system at a rate or 100 W.lfthe system performs work at a rate of 75 joules per second at what rate is the internal energy increasing?

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11th Physics Monthly Test - 3 ( Heat and Thermodynamics )

MABS Institution

11th Physics Monthly Test - 3 ( Heat and Thermodynamics )-Aug 2020

Part - A

Generic 2 - Answer All Question

What is an equation of state? Give an example

What is Thermodynamics?

Define Emissivity.

What is latent heat of sublimation?

What do you meant by change of state of a substance?

What is a principle of calorimetry?

Is it possible that there is a change in temperature of a body without giving/taking heat to from it?

Give the sign convention for Q and W.

Obtain an ideal gas law from Boyle’s and Charles’ law.

What is sublimation?

What is Wien’s law?

Can water be boiled without heating?

In a petrol engine, (internal combustion engine) air at atmospheric pressure and temperature of 20°C is compressed in the cylinder by the piston to 1/8 of its original volume. Calculate the temperature of the compressed air. (For air \(\gamma \) = 1.4)

Part - B

Generic 3 - Answer All Question

Write the important properties of thermal radiations.

When 0.45 kg of ice of 0°Cmixed with 0.9 kg of water at 55°C in a container, the resulting temperature is 10°C. Calculate the heat of fusion of ice.

Write the equation of state for an ideal gas.

What is the specific heat of a gas in an adiabatic process?

Draw and explain the distribution of radiation intensity.

Define cyclic processes

What amount of heat must be supplied to 2.0 x 10-2 kg of nitrogen (at room temperature) to raise its temperature by 45°C at constant pressure? (Molecular mass of N2 = 28, R = 8.3 J mol-1k-1)

Applying first law of thermodynamics, write relation between P & T.

State the factors on which the conduction of heat through a substance depends.

Write any 3 phenomena which are based on thermal convection.

Calculate the heat required to convert 0.6 kg of ice at - 20°C, kept in a calorimeter to steam at 100°C atmospheric pressure, Given the specific heat capacity (Lice) of lee= 2100 Jkg-1K-1.

What is specific heat of a gas in an isothermal process?

An electric heater supplies heat to a system at a rate or 100 W.lfthe system performs work at a rate of 75 joules per second at what rate is the internal energy increasing?

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What amount of heat must be supplied to 2.0 x 10^-2 kg of nitrogen (at room temperature) to raise its temperature by 45^°C at constant pressure? (Molecular mass of N² = 28, R = 8.3 J mol^-1k^-1)

Calculate the heat required to convert 0.6 kg of ice at - 20°C, kept in a calorimeter to steam at 100°C atmospheric pressure, Given the specific heat capacity (L_ice) of lee= 2100 Jkg^-1K^-1.