Chapter 15 – Thermodynamics
A ring shaped tube contains two ideal gases with equal masses and molecular weight M1 = 32 and M2 = 28. The gases are separated by one fixed partition P and another movable conducting partition S which can move freely without friction inside the ring. The angle α as shown in the figure is:
12
Sep
A ring shaped tube contains two ideal gases with equal masses and molecular weight M1 = 32 and M2 = 28. The gases are separated by one fixed partition P and another movable conducting partition S which can move freely without friction inside the ring. The angle α as shown in the figure is: Heat [...]
A fixed mass of an ideal gas undergoes changes of pressure and volume starting at L, as shown in the figure. Which graph shows how temperature change with volume ?
12
Sep
A fixed mass of an ideal gas undergoes changes of pressure and volume starting at L, as shown in the figure. Which graph shows how temperature change with volume ? A fixed mass of an ideal gas undergoes changes of pressure and volume starting at L as shown in the figure. Which graph shows how [...]
A sample of an ideal gas initially having internal energy U_(1) is allowed to expand adiabatically performing work W. Heat Q is then supplied to it, keeping the volume constant at its new value, until the pressure raised to its original value. The internal energy is then U_(2) (see figure). The increase in internal energy (U_(2) – U_(1)) is equal to
12
Sep
A sample of an ideal gas initially having internal energy U_(1) is allowed to expand adiabatically performing work W. Heat Q is then supplied to it, keeping the volume constant at its new value, until the pressure raised to its original value. The internal energy is then U_(2) (see figure). The increase in internal energy [...]
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A sample of an ideal gas initially having internal energy U_(1) is allowed to expand adiabatically performing work W. Heat Q is then supplied to it ,
keeping the volume constant at its new value ,
until the pressure raised to its original value. The internal energy is then U_(2) (see figure). The increase in internal energy (U_(2) - U_(1)) is equal to ,
One mole of an ideal gas at temperature T was cooled isochorically till the gas pressure fell from P to (P)/(n). Then, by an isobaric process, the gas was restored to the initial temperature. The net amount of heat absorbed by the gas in the process is
12
Sep
One mole of an ideal gas at temperature T was cooled isochorically till the gas pressure fell from P to (P)/(n). Then, by an isobaric process, the gas was restored to the initial temperature. The net amount of heat absorbed by the gas in the process is by an isobaric process One mole of an [...]
An ideal gas has a molar heat capacity Cv at constant volume. Find the molar heat capacity of this gas as a function of its volume V, if the gas undergoes the following process P = P0e^av.
12
Sep
An ideal gas has a molar heat capacity Cv at constant volume. Find the molar heat capacity of this gas as a function of its volume V, if the gas undergoes the following process P = P0e^av. An ideal gas has a molar heat capacity Cv at constant volume. Find the molar heat capacity of [...]
One mole of an ideal gas requires 207 J heat to rise the temperature by 10 K when heated at constant pressure. If the same gas is heated at constant volume to raise the temperature by the same 10 K, the heat required is
12
Sep
One mole of an ideal gas requires 207 J heat to rise the temperature by 10 K when heated at constant pressure. If the same gas is heated at constant volume to raise the temperature by the same 10 K, the heat required is One mole of an ideal gas requires 207 J heat to [...]
1g of water, of volume 1 cm3 at 100°C, is converted into steam at same temperature . The volume of steam formed equals 1671 cm^3, find the change in the internal energy of the system. Given latent heat steam = 2256 J/g, and 1 atmospheric pressure = 1.013 x 10^5 N/m^-2
12
Sep
1g of water, of volume 1 cm3 at 100°C, is converted into steam at same temperature . The volume of steam formed equals 1671 cm^3, find the change in the internal energy of the system. Given latent heat steam = 2256 J/g, and 1 atmospheric pressure = 1.013 x 10^5 N/m^-2 1g of water and [...]
A Carnot engine sink temperature 17 degree Celsius has 50 percent efficiency. By how much should it source temperature be changed to increase efficiency 60 percent ?
12
Sep
A Carnot engine sink temperature 17 degree Celsius has 50 percent efficiency. By how much should it source temperature be changed to increase efficiency 60 percent ? A Carnot engine sink temperature 17 degree Celsius has 50 percent efficiency. By how much should it source temperature be changed to increase efficiency 60 percent ? September [...]
In a Carnot engine , the temperature of the reservoir is 927 C and that of sink is 127 C . If the work done by the engine when it transfers heat from the reservoir to sink is 12.6 x 10^6 J . the quantity of heat absorbed by the engine from the reservoir is
12
Sep
In a Carnot engine , the temperature of the reservoir is 927 C and that of sink is 127 C . If the work done by the engine when it transfers heat from the reservoir to sink is 12.6 x 10^6 J . the quantity of heat absorbed by the engine from the reservoir is [...]
A Carnot engine working between 27^oC and 127^oC has a work output of 200 J per cycle. The energy supplied to the engine from the source in each cycle is
12
Sep
A Carnot engine working between 27^oC and 127^oC has a work output of 200 J per cycle. The energy supplied to the engine from the source in each cycle is A Carnot engine working between 27^oC and 127^oC has a work output of 200 J per cycle. The energy supplied to the engine from the [...]