60%, 40%
When a monoatomic gas expands at constant pressure the percentage of heat supplied that increases temperature of the gas?
60%, 40%
When a monoatomic gas expands at a constant pressure the percentage?
60%, 40%
60%, 40%
60%, 40%
60%, 40%
25%, 75%
Therefore, when gas expands at a constant temperature, pressure decreases as well as kinetic energy of the molecules will remain the same.
When an ideal monoatomic gas is heated at constant pressure, fraction of heat energy supplied which increases the internal energy of gas, is. i.e., fraction of heat energy to increase the internal energy be 3/5 .
An isothermal process is a change of a system, in which the temperature remains constant: ΔT = 0 . ... In contrast, an adiabatic process is where a system exchanges no heat with its surroundings (Q = 0).
An ideal diatomic gas is heated at constant pressure .
When 1 mole of gas is heated at constant volume, the temperature is raised from 298 to 308 K and heat supplied to gas is 500 J .
The heat capacity at constant pressure CP is greater than the heat capacity at constant volume CV , because when heat is added at constant pressure, the substance expands and work . QV = CV △T = △U + W = △U because no work is done. Therefore, dU = CV dT and CV = dU dT .
The percentage of heat supplied that increases the internal energy of the gas and that is involed in the expansion is. Therefore, percentage energy =30/5=60% .
Coming to option C, Kinetic energy of molecules remains the same . It is correct because at constant temperature kinetic energy of the gas remains the same. Therefore, if gas expands at a constant temperature the kinetic energy of the molecules remains the same.
Hence, when the gas is compressed, its molecules come closer and internal energy of gas is increased and the number of collisions will also increase . As the gas is compressed, the work done on it shows up as increased internal energy, which must be transferred to the surroundings to keep the temperature constant.
No, there is no way to decrease the temperature of a gas without removing heat from it. Yes, if the gas is allowed to expand in an adiabatic process the pressure decrease and volume increase provide the work of the system.
To answer in simple words, Yes. The molar specific heat capacity can be negative . It can be negative when we consider a polytropic process and the value of n in the range 1 < n < γ.
Therefore, the heat supplied increases the internal energy of the gas and increases the temperature of the gas.