Question

1. A mass m = 14 g nitrogen is contained in a closed vessel at the initial temperature t 1 = 27 ° C.
a) How much heat must be transmitted to the gas to increase the average square velocity a
molecules n = 2 times?
b) How often do absolute temperature, pressure and density increase? Is considered
known: R = 8310 J / kmol K, µ N2 = 28 kg / kmol.

2. An ideal mole of gas passes isochorically from state 1 to state 2 at a pressure of n = 1.5 times
smaller. The isobar is then heated to the initial temperature. In the process 1-2-3
the gas performs the mechanical work L = 830 J. Find T 1. It is considered known
the general constant of the ideal agases, R = 8310 J / kmol K. Represent the process in
pV, VT, pT diagrams.

3. An ideal volume V 1 = 1 L of gas expands isothermally from pressure p 1 = 271.8kPa to
at pressure p 2 = 100kPa. Calculate: a) the mechanical work done by the gas, b) the heat
absorbed, c) variation of internal energy.

4. An ideal gas goes through the cycle in the figure below. We know: t 1 = 27 ° C, V 1 = 5 L,
t 3 = 127 ° C, V 3 = 6 L and volume V 10 under normal conditions: V 10 = 10 L.
Learn the mechanical work of gas in a cycle. Represent the cycle and in
pV and pT diagrams.

Answer 1

Answer:

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Answer 2

Answer:

1. A mass m = 14 g nitrogen is contained in a closed vessel at the initial temperature t 1 = 27 ° C.

a) How much heat must be transmitted to the gas to increase the average square velocity a

molecules n = 2 times?

b) How often do absolute temperature, pressure and density increase? Is considered

known: R = 8310 J / kmol K, µ N2 = 28 kg / kmol.

2. An ideal mole of gas passes isochorically from state 1 to state 2 at a pressure of n = 1.5 times

smaller. The isobar is then heated to the initial temperature. In the process 1-2-3

the gas performs the mechanical work L = 830 J. Find T 1. It is considered known

the general constant of the ideal agases, R = 8310 J / kmol K. Represent the process in

pV, VT, pT diagrams.

3. An ideal volume V 1 = 1 L of gas expands isothermally from pressure p 1 = 271.8kPa to

at pressure p 2 = 100kPa. Calculate: a) the mechanical work done by the gas, b) the heat

absorbed, c) variation of internal energy.

4. An ideal gas goes through the cycle in the figure below. We know: t 1 = 27 ° C, V 1 = 5 L,

t 3 = 127 ° C, V 3 = 6 L and volume V 10 under normal conditions: V 10 = 10 L.

Learn the mechanical work of gas in a cycle. Represent the cycle and in

pV and pT diagrams.

Explanation:

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