Question

The specific heat of a gas maybe found in table 2.1 as a function of temperature....

The specific heat of a gas maybe found in table 2.1 as a function of temperature. Find the change of enthalpy when the temperature is increased from 320K to 1200K for a) air, b) nitrogen, and C) methane

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
How does the temperature and specific heat capacity of a sample of water (the calorimeter) change...
How does the temperature and specific heat capacity of a sample of water (the calorimeter) change as a different mass or temperature of hot metal is added to it? How does the temperature and specific heat capacity of a sample of water (the calorimeter) change as the volume of water is changed? How does the molar enthalpy of dissolution change with the amount of substance added to water? How does the molar enthalpy of dissolution change with the volume of...
1) An isentropic flow: a) has no heat transfer, b) does not allow temperature to change,...
1) An isentropic flow: a) has no heat transfer, b) does not allow temperature to change, c) can occur in a real physical problem, d) can only occur when the fluid is at rest. 2) Based on the first law of thermodynamics (assuming no chemical reactions, i.e. just a simple gas like air or helium): a) changing the flow velocity can heat the flow, b) moving a solid body through a fluid can heat the fluid, c) compressing a perfectly...
A) 1 kg of air with a pressure of 13 bar and a temperature of 125...
A) 1 kg of air with a pressure of 13 bar and a temperature of 125 ° C is heated as isobar up to 550 ° C. a) Work done during heating, b) Internal energy and enthalpy change, c) Calculate the amount of heat consumed. (R = 287 j / kgK, x = 1,4) B) An ideal gas with a pressure of 1 bar and a volume of 0.5m³ is compressed isothermally up to 17 bar pressure. Calculate the volume...
n moles of gaseous nitrogen are cooled off from a Temperature T=300 K to just below...
n moles of gaseous nitrogen are cooled off from a Temperature T=300 K to just below its liquid temperature of 77 K with a specific enthalpy change ΔH1= -1440 cal/mol. This amount of nitrogen can be liquefied by extracting some extra heat. The specific heat of vaporization of liquid nitrogen equals ΔH2= 1336 cal/mol. Calculate the total amount of heat to be extracted from n=1.3 moles of gaseous nitrogen in this process.
Ideal gas with constant specific heat (static specific heat ??0 , Specific heat ratio ?) per...
Ideal gas with constant specific heat (static specific heat ??0 , Specific heat ratio ?) per unit mass in the polytropic process (index: ?) The amount of micro heat transfer received by the sieve can be calculated by ?? = ?? ∙ ??. Cn is called the polytropic constant. (a) Deduce the polytropic specific heat in terms of exponent ?, specific heat and static specific heat ??0. (? ≠ 1) (Hint: Polytropic course can also be written as ?? ^...
The constant-pressure heat capacity of a sample of a perfect gas was found to vary with...
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.
Methane enters a heat e xchanger at a volumetric flow rate of 145.0 m 3 /min,...
Methane enters a heat e xchanger at a volumetric flow rate of 145.0 m 3 /min, at an absolute pressure of 1.013 bar and temperature of 15.0°C. At these conditions, the specific enthalpy of methane is - 23.181 kJ/kg. The methane leaves the heat exchanger at an absolute pressure of 1.0 13 bar and temperature of 60.0°C. The corresponding specific enthalpy at these conditions is 78.656 kJ/kg. The methane is heated by a stream of saturated steam entering the heat...
Air in a tank undergoes a heating process from 25°C to 100°C. Assuming that air behaves...
Air in a tank undergoes a heating process from 25°C to 100°C. Assuming that air behaves as an ideal gas with constant specific heat, find the change in specific enthalpy and specific internal energy for the process.
A. Sodium metal reacts with water to produce hydrogen gas and sodium hydroxide according to the...
A. Sodium metal reacts with water to produce hydrogen gas and sodium hydroxide according to the chemical equation shown below. When 0.020 mol of Na is added to 100.00 g of water, the temperature of the resulting solution rises from 25.00°C to 33.60°C. If the specific heat of the solution is 4.18 J/(g • °C), calculate ΔH for the reaction, as written. 2 Na(s) + 2 H2O(l) → 2 NaOH(aq) + H2(g) ΔH= ? Sodium metal reacts with water to...
Q8 a) Define (i) Specific Heat Capacity, (ii) Specific Latent Heat. b) 500g of water at...
Q8 a) Define (i) Specific Heat Capacity, (ii) Specific Latent Heat. b) 500g of water at temperature of 15°C is placed in a freezer. The freezer has a power rating of 100W and is 80% efficient. (i) Calculate the energy required to convert the water into ice at a temperature of -20°C. (ii) How much energy is removed every second from the air in the freezer? (iii) How long will it take the water to reach a temperature of -20°C?...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT