60%, 40%
When a monoatomic gas expands at constant pressure the percentage?
60%, 40%
When a monoatomic gas expands at constant pressure the percentage of heat supplied that increases the internal energy of the gas and that which is invovled in expansion is?
75%, 25%
When a monoatomic ideal gas expands at a constant pressure of?
A vessel contains an ideal monoatomic gas which expands at constant pressure, when
heat Q
is given to it. Then the work done in expansion is. For process at constant pressure. Q=nCPΔT=52nRΔTandW = P Delta V = nR Delta T = 2/5 Q` .
When a monoatomic gas expands at constant pressure what increases heat of the gas internally expansion at constant pressure is 100% 0 60%/40% 60% 75% 255% 25%?
25%, 75%
When an ideal monoatomic gas is heated at constant pressure percentage of heat energy?
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
.
When an ideal diatomic gas is?
When an ideal diatomic gas is heated at constant pressure, the fraction of the
heat energy supplied
, which increases the internal energy of the gas, is. Therefore, the correct option is (d).
What happens when one mole of gas is heated at constant volume?
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
.
Why the specific heat at a constant pressure is more than that at constant volume?
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 .
What remains constant in isothermal process?
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).
What does N stand for in the ideal gas law?
The ideal gas law can be written in terms of the number of molecules of gas: PV = NkT, where P is pressure, V is volume, T is temperature,
N is number of molecules
, and k is the Boltzmann constant k = 1.38 × 10
– 23
J/K.
What is the change in the internal energy of the gas?
Change in internal energy: If the temperature of an ideal gas changes, the change in internal energy of the gas
is proportional to the change in temperature
. If there is no change in temperature, there is no change in internal energy (as long as the number of moles of gas remains constant).
Can molar heat capacity of a gas be negative?
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.
What is the value of CV for diatomic gas?
The molar specific heat capacity of a gas at constant volume (C
v
) is the amount of heat required to raise the temperature of 1 mol of the gas by 1 °C at the constant volume. Its value for monatomic ideal gas is 3R/2 and the value for diatomic ideal gas is
5R/2
.
When the gas is heated at constant pressure the heat supply?
Therefore, the heat supplied
increases the internal energy of the
gas and increases the temperature of the gas.
When a ideal diatomic gas is heated?
Here f is the number of degrees of freedom of the gas and here for diatomic gas
f = 5
. Therefore [dfrac{1}{gamma } = dfrac{5}{7}] is a fraction of the heat energy supplied which increases the internal energy of the gas. Hence, D is the correct option.
