Thermodynamics

Vol is 0.2m^3 of mixture of fuel and air at 1.2 bar and 60°c compressed until it's pressure becomes 12bars with Temp of 270°c. It's then ignited suddenly at constant volume and it's pressure becomes twice the pressure at the end of compression.( Cp=1.072kj/kg and R=294j/kgk.

2 1

Anonymous

Mar 6

#engineering #thermodynamics #physics

Calculate max Temp reached, change in internal energy, heat transfer during process ?

Constant Vol=0.2m^3 mixture of fuel and air at 1.2 bars and 60°c compressed pressure to 12bars with Temp 270°c with constant volume and it's pressure becomes twice the pressure at the end of compression. Calculate max Temp reached, change in internal energy, heat  transfer during process ?

2 1

Anonymous

Mar 6

#chemistry #thermodynamics #physics

A quantity of a gas at a temperature of 15 degree Celsius is hearted at constant pressure until it's volume is doubled find final temperature of the gas?

Charles law

1 1

Anonymous

Mar 4

#heat-transfer #thermodynamics #physics

What must be the initial velocity of a lead bullet at 25 degrees Celsius so that the heat developed when it is brought to rest will be sufficient to melt it at 327.3 degrees Celsius ?

1 1

#thermodynamics

Anonymous

Boiling point increases as molar heat of vaporization increases however it will not determine the strength of the intermolecular forces between molecules. true or false?

Anonymous

When dealing with Charles law should we change the temperature to Kelvin?

Anonymous

State Charles law?

Anonymous

4.0 moles of argon gas is contained in a cylinder at 300k.How much heat must be added to raise its temperature to 600K at constant volume?

Derek Moenga

Forms of heat transfer?

Derek Moenga

Define latent heat of vaporization?

Anonymous

Define density?

Derek Moenga

Identify latent heat of vaporization?

Anonymous

A 500mlong aluminium table expands when it was placed under the sun , it's temperature increases from 20°c to 60°c .what is the new length (linear expansivity of aluminum is 2.30*10^-5k)?

Anonymous

What quantity of heat will be necessary to change 2kg of ice at 0c⁰ to water at 10c⁰ specific latent heat of fusion of ice =3.36*10⁵jkg-¹k-¹ at specific heat capacity of water 4200jkg-¹k-¹??

Anonymous

Calculate the specific heat capacity of the materials for which the heat supply mass and temperature rise are .i 2.52*10⁴j ,20kii 8*10³j 500g from 20c⁰ to 60c⁰iii 9.45 *10³j 150g from 15c⁰ to 45c⁰ ??

Anonymous

If the linear expansivity of a copper rod is 0.000017k–1. calculate the expansion of 10m of copper rod when heated from 10°c to 50 °c?

Anonymous

Explain the effects of temperature on the conductivity of a material?

Anonymous

Differentiate between specific heat capacities at constant volume and constant pressure?

Anonymous

How to calculate for maximum temperature when given temperatures final and initial temperature at constant volume?

Anonymous

Calculate max temp reached, change in internal energy, heat transfer. When vol=0.2m^3, at 1.2 bars, 60°c compressed 12bars temp 270°c at constant vol. P becomes twice at the end(cp=1.072kj,R=294j/kgk?

Anonymous

Calculate maximum temperature reached and change in internal energy, heat transfer during process?

Anonymous

Calculate max Temp reached, change in internal energy, heat transfer during process ?

Anonymous

A quantity of a gas at a temperature of 15 degree Celsius is hearted at constant pressure until it's volume is doubled find final temperature of the gas?

Anonymous

What must be the initial velocity of a lead bullet at 25 degrees Celsius so that the heat developed when it is brought to rest will be sufficient to melt it at 327.3 degrees Celsius ?

Anonymous

Calculate the specific heat capacity of the materials for which the heat supply mass and temperature rise are .i 2.5210⁴j ,20kii 810³j 500g from 20c⁰ to 60c⁰iii 9.45 *10³j 150g from 15c⁰ to 45c⁰ ??