Question

**What would be a molecular heat capacity of perfect gas
(He, HCl, and CH4 gas)?**

Answer #1

A perfect gas has a constant volume molar heat capacity of CV ,m
1.5 R and a constant pressure molar heat capacity of Cp,m 2.5
R . For the process of heating 2.80 mol of this gas with a 120 W
heater for 65 seconds, calculate
a) q, w, T, and U for heating at a constant volume,
b) q, w, T, and H for heating at a constant pressure.
Note: Square = Delta

The constant-pressure heat capacity of a sample of a perfect gas
was found to vary with temperature according to the expression Cp
(J K−1) = 20.17 + 0.4001(T/K). Calculate q, w, ΔU, and
ΔH when the temperature is raised from 0°C to 100°C (a) at constant
pressure, (b) at constant volume.

The heat capacity of a diatomic gas is greater than the heat
capacity of a monatomic gas. Explain.

a gas sample contains 4.00g CH4 and 2.00g of He. what is the
volume of the sample at STP?

The heat capacity at constant pressure of a certain amount of a
diatomic gas is 13.2 J/K.
(a) Find the number of moles of the gas.
(b) What is the internal energy of the gas at T = 312
K?
(c) What is the molar heat capacity of this gas at constant
volume?
(d) What is the heat capacity of this gas at constant volume?

The heat capacity at constant pressure of a certain amount of a
diatomic gas is 13.2 J/K.
(a) Find the number of moles of the gas.
(b) What is the internal energy of the gas at T = 312
K?
(c) What is the molar heat capacity of this gas at constant
volume?
(d) What is the heat capacity of this gas at constant
volume?

In thermodynamics, what is ideal gas heat capacity?
How is it derived and applicable to the real world?
What is enthalpy?

The heat capacity at constant volume of a certain amount of a
monatomic gas is 53.7 J/K.
(a) Find the number of moles of the gas. in mol
(b) What is the internal energy of the gas at T = 286
K? in kJ
(c) What is the heat capacity of the gas at constant pressure?
in J/k

The combustion of 1 gram of natural gas releases 50.1kJ of
heat.
Calculate the mass of co2 released when natural gas is burnt to
produce 1500 kJ od heat. Natural gas is assumed to be pure methane:
CH4
Answer: The mass of co2 produced when natural gas (CH4) was used
as fuel came out to be 82 grams.
Question: What would be the value of co2 produced if Bituminous
coal (C135H96O9NS) is used to produce the same 1500 kJ of...

A sample of 64.0 g of methane, CH4 (molecular mass
16.0 g/mol, assume ideal gas behaviour)) at 300 K and with an
initial pressure V1 = 1.00 m3 is
compressed isothermally and reversibly to a final volume
of 2.00L. Calculate DU, DH, w, and q

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