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12. Liquid methane boils at 112°K and one atmosphere pressure. The heat energy absorbed is 2.22...
Must the amount of heat absorbed as 1 kg of saturated liquid water boils at 100...
Must the amount of heat absorbed as 1 kg of saturated liquid water boils at 100 °C, be equal to the amount of heat released as 1 kg of saturated water vapor condenses at 100 °C? Why? Which process requires more energy: completely vaporizing 1 kg of saturated liquid water at 1 atm pressure or completely vaporizing 1 kg of saturated liquid water at 8 atm pressure? Why? A food-scientist is cooking three identical beef stews in pans that are...
(a) Calculate the entropy and free energy change per mole when liquid water boils at 1...
(a) Calculate the entropy and free energy change per mole when liquid water boils at 1 atm pressure. assume that for water ∆Hvap =2095.50 KJ/Kg (b) State whether the process is spontaneous or not
At a pressure of one atmosphere methane boils at −161°C and freezes at −182.5°C. Consider a...
At a pressure of one atmosphere methane boils at −161°C and freezes at −182.5°C. Consider a temperature scale where the boiling point of methane is 100.0°M and the freezing point is 0°M. Determine the temperature on the Methane scale that corresponds to the absolute zero point on the Kelvin scale. Express your answer to 3 sig figs _____°M
2. (10 pts) If 56.0 k) of heat is added to a 41.0-g sample of liquid...
2. (10 pts) If 56.0 k) of heat is added to a 41.0-g sample of liquid temperature of -170 °C, what is the final state final temperature once the system equilibrates? 108 sample of liquid methane under 1 atm of pressure at a methane once the system equilibrates? What is the Assume no heat is lost to the surroundings. The normal boiling point of methane is -161.5.C. AHvap = 8.20 * The specific heats of liquid and gaseous methane are...
One mole of methane gas (CH4) is heated isobarically at a pressure of 1 atm from...
One mole of methane gas (CH4) is heated isobarically at a pressure of 1 atm from 82.2 ° C to 211.9 ° C in a cylindrical piston device with condensed steam from saturated vapor to fully condensed at 250 ° C. a. If methane is considered an ideal gas, calculate ΔU, ΔH, ΔS, ΔG (in Joule) b. Calculate work (W) and heat involved (Q), (in Joule). c. Calculate the change in environment, and the total entropy generated by this process...
1. The heat of reaction at 300 K and one atmosphere pressure for the following gas...
1. The heat of reaction at 300 K and one atmosphere pressure for the following gas phase reaction: A+3BC is-200 kJ per mol of A converted. Data on the molar heat capacity at constant pressure (kJ/mol K) for the various components are: Cp for A-1.7x10-3 +3.4 x104 T, where T is in K, Cp for B-0.03 and Cp for C- 0.1 Calculate the heat of reaction at 500 K and at a pressure of 100 kPa.
. PLEASE HELP!!! SHOW ALL STEPS THANKS If 42.0 kJ of heat is added to a...
. PLEASE HELP!!! SHOW ALL STEPS THANKS
If 42.0 kJ of heat is added to a 32.0 g sample of liquid methane
under 1 atm of pressure at a temperature of -170 oC,
what are the final state and temperature of the methane once the
system equilibrates? Assume no heat is lost to the surroundings.
The normal boiling point of methane is -161.5 oC. The
specific heats of liquid and gaseous methane are 3.48 and 2.22
J/g-K, respectively.
48 g of methane (CH4) gas is heated reversibly from 200 K to 1800 K at...
48 g of methane (CH4) gas is heated reversibly from 200 K to 1800 K at constant pressure conditions. The constant-pressure molar heat capacity of CH4 from 200 K to 1800 K is given by: Cp, molar (T) a + bT + cT-2 where a, b, and c, are constants For CH4, these constants these constants have the values a = JK2 mol, and c =1.825x104 JKmol -1. 31.50 JKmol -1, b 3.824 x10 Calculate the value of AH (in...
Ethyl chloride (C2H5Cl) boils at 12 degrees celcius. When liquid C2H5Cl under pressure is sprayed on...
Ethyl chloride (C2H5Cl) boils at 12 degrees celcius. When liquid C2H5Cl under pressure is sprayed on a room-temperature (25 degrees celcius) surface in air, the surface is cooled considerably. a) What does this observation tell us about the specific heat of C2H5Cl(g) as compared with C2H5Cl(l)? b) Assume that the heat lost by the surface is gained by ethyl chloride. What enthalpies must you consider if you were to calculate the final temperature of the surface?
1.f) Methane gas (CH4) enters a combustion chamber at a rate of 3 kg/sec at a...
1.f) Methane gas (CH4) enters a combustion chamber at a rate of 3 kg/sec at a temperature of 25 °C. A 200% theoretical air is supplied at a temperature of 400K. At the middle of methane combustion process (i.e., after 50% of methane gas is burnt), liquid propane (C3H8) at 25°C is injected at a rate that produces neither CO nor O2 in the flue gases. Assume steady state and adiabatic process at 1 atm, calculate the following i. The...
Must the amount of heat absorbed as 1 kg of saturated liquid water boils at 100 °C, be equal to the amount of heat released as 1 kg of saturated water vapor condenses at 100 °C? Why? Which process requires more energy: completely vaporizing 1 kg of saturated liquid water at 1 atm pressure or completely vaporizing 1 kg of saturated liquid water at 8 atm pressure? Why? A food-scientist is cooking three identical beef stews in pans that are...
2. (10 pts) If 56.0 k) of heat is added to a 41.0-g sample of liquid temperature of -170 °C, what is the final state final temperature once the system equilibrates? 108 sample of liquid methane under 1 atm of pressure at a methane once the system equilibrates? What is the Assume no heat is lost to the surroundings. The normal boiling point of methane is -161.5.C. AHvap = 8.20 * The specific heats of liquid and gaseous methane are...
1. The heat of reaction at 300 K and one atmosphere pressure for the following gas phase reaction: A+3BC is-200 kJ per mol of A converted. Data on the molar heat capacity at constant pressure (kJ/mol K) for the various components are: Cp for A-1.7x10-3 +3.4 x104 T, where T is in K, Cp for B-0.03 and Cp for C- 0.1 Calculate the heat of reaction at 500 K and at a pressure of 100 kPa.
. PLEASE HELP!!! SHOW ALL STEPS THANKS
If 42.0 kJ of heat is added to a 32.0 g sample of liquid methane
under 1 atm of pressure at a temperature of -170 oC,
what are the final state and temperature of the methane once the
system equilibrates? Assume no heat is lost to the surroundings.
The normal boiling point of methane is -161.5 oC. The
specific heats of liquid and gaseous methane are 3.48 and 2.22
J/g-K, respectively.
48 g of methane (CH4) gas is heated reversibly from 200 K to 1800 K at constant pressure conditions. The constant-pressure molar heat capacity of CH4 from 200 K to 1800 K is given by: Cp, molar (T) a + bT + cT-2 where a, b, and c, are constants For CH4, these constants these constants have the values a = JK2 mol, and c =1.825x104 JKmol -1. 31.50 JKmol -1, b 3.824 x10 Calculate the value of AH (in...
1.f) Methane gas (CH4) enters a combustion chamber at a rate of 3 kg/sec at a temperature of 25 °C. A 200% theoretical air is supplied at a temperature of 400K. At the middle of methane combustion process (i.e., after 50% of methane gas is burnt), liquid propane (C3H8) at 25°C is injected at a rate that produces neither CO nor O2 in the flue gases. Assume steady state and adiabatic process at 1 atm, calculate the following i. The...
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