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Anonymous

Mar 31

#chemistry #thermodynamics #physics

Define density?

1 1

Derek Moenga

Mar 31

#chemistry #thermodynamics #physics

Identify latent heat of vaporization?

3 1

Anonymous

Mar 24

#materials-science #thermodynamics #physics

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)?

Cal

1 1

Anonymous

Mar 23

#heat-transfer #thermodynamics #physics

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??

Physics

1 1

Anonymous

Mar 23

#heat-transfer #thermodynamics #physics

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 ??

Physics

1 1

Anonymous

Mar 22

#materials-science #thermodynamics #physics

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?

1 1

Anonymous

Mar 11

#materials-science #thermodynamics #physics

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

1 1

Anonymous

Mar 7

#thermodynamics #physics

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

Differentiate

1 1

Anonymous

Mar 6

#temperature-calculation #thermodynamics #physics

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

Physics

1 1

Anonymous

Mar 6

#volume #heat-transfer #pressure #internal-energy #temperature-change #thermodynamics

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?

P= pressure

1 1

Anonymous

Mar 6

#heat-transfer #thermodynamics #physics

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

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

Anonymous

Mar 3

#heat-transfer #thermodynamics #physics

A400g aluminum container containing 300g of water at 20 degrees Celsius is refrigerated to 0 degrees Celsius in 80 minutes. Determine the rate per minute at which heat is removed from the container ?

1 1

Anonymous

Mar 2

#gas-laws #thermodynamics #physics

Show that the thermodynamic work done in compressing a gas at a constant pressure is given by the product of that pressure and volume?

1 1

Anonymous

Feb 28

#heat-transfer #thermodynamics #physics

Sensible heat ?

1 1

John Gunurei

Feb 25

#chemistry #thermodynamics #physics

What is the pressure (in kPa) of 0.4 mol of hydrogen in a container of volume 8L at 27 degree Celsius?

Exact solution working to this question please?

1 1

Anonymous

Feb 25

#chemistry #thermodynamics #physics

What is the volume of 2 mol of nitrogen at 50 degree Celsius with pressure 200 kPa?

A formula to work out this question please??

1 1

Anonymous

Feb 7

#thermodynamics

How to change 120kpa to pa?

1 1

#thermodynamics

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

A400g aluminum container containing 300g of water at 20 degrees Celsius is refrigerated to 0 degrees Celsius in 80 minutes. Determine the rate per minute at which heat is removed from the container ?

Anonymous

Show that the thermodynamic work done in compressing a gas at a constant pressure is given by the product of that pressure and volume?

Anonymous

Sensible heat ?

John Gunurei

What is the pressure (in kPa) of 0.4 mol of hydrogen in a container of volume 8L at 27 degree Celsius?

Anonymous

What is the volume of 2 mol of nitrogen at 50 degree Celsius with pressure 200 kPa?

Anonymous

How to change 120kpa to pa?

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 ??