Homework Answers
Delta H is negative.
So, heat is released.
From given reaction,
When 1 mol of CH4 reacts, heat released = 434 KJ
So,
When 1.2 mol of CH4 reacts, heat released = 434*1.2 = 520.8 KJ
= 5.2*10^5 J
Answer: a
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8. CH4(g) + 4Cl2(g) → CCl4(g) + 4HCI(g), AH = -434 kJ Based on the above...
Calculate AH® for the following: rxn CH4(8) + Cl2(g) → CCl4(!) + HCl(g) [unbalanced] -139 kJ/mol...
Calculate AH® for the following: rxn CH4(8) + Cl2(g) → CCl4(!) + HCl(g) [unbalanced] -139 kJ/mol AH (CH4®= -74.87 kJ/mol a CCl4@)) = -96.0 kJ/mol AHCC140] =-139 kJ/mol AH [HCI@)) =-92.31 kJ/mol AH [HCl(aq)] =-167.46 kJ/mol Ahº [C1()] = 121.0 kJ/mol
A chemist measures the energy change AH during the following reaction: CH4(9)+202(9) + CO2(9)+2H2O(1) AH= -882....
A chemist measures the energy change AH during the following reaction: CH4(9)+202(9) + CO2(9)+2H2O(1) AH= -882. kJ Use the information to answer the following questions. This reaction is... ОО endothermic. exothermic. Yes, absorbed. Yes, released. Suppose 33.5 g of CH4 react. X 5 ? Will any heat be released or absorbed? No. If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Round your answer...
given the following thermochemical equation detailing the combustion of methane (CH4) determine the amount of energy...
given the following thermochemical equation detailing the
combustion of methane (CH4) determine the amount of energy released
when 1.563 mol of methane undergoes combustion
Given the following thermochemical equation 14. detailing the combustion of methane (CH4) CH g)+ 202(g) CO2(g) + 2H20(g) 1.563 determine the amount of energy released when 1.563 mol of methane undergoes combustion. AH=-802kJ/mol CH a. 1.95 x d. 1250 kJ b. 3,12x 10 kJ e. 2.01 x 10' kJ c. 453 kJ
CH4(g) + 2O2(g), AH° = 803 kJ which of the following For the following reaction, CO2(g)...
CH4(g) + 2O2(g), AH° = 803 kJ which of the following For the following reaction, CO2(g) + 2H2O(g) = will increase K? Select one: O a. increase the temperature of system O b. none of the above O c. decrease number of moles of methane O d. all of the above O e increase volume of system
17.5 mm #2 The following gas phase system is at equilibrium: CCl4(g) + CH4(g) ⇄ 2...
17.5 mm #2 The following gas phase system is at equilibrium: CCl4(g) + CH4(g) ⇄ 2 CH2Cl2(g) The pressure of each gas is measured at 301 K: P(CCl4) = 173 mmHg P(CH4) = 1.72×10-3 mmHg P(CH2Cl2) = 113 mmHg What is the Gibbs free energy change at this temperature? kJ/mol
A chemist measures the energy change AH during the following reaction: AH=-2220. kJ CH (0)+50 (g)...
A chemist measures the energy change AH during the following reaction: AH=-2220. kJ CH (0)+50 (g) 3 CO(g)+4H,O(1) Use the information to answer the following questions. This reaction is... endothermic. exothermic. Yes, absorbed. Yes, released Suppose 73.5 g of CHg react. x 6 ? Will any heat be released or absorbed? No. If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Round your answer...
For the reaction CH_(g) + H2O(g) +3H2(g) + CO(g) AH° = 206.1 kJ and AS° =...
For the reaction CH_(g) + H2O(g) +3H2(g) + CO(g) AH° = 206.1 kJ and AS° = 214.7 J/K The standard free energy change for the reaction of 1.73 moles of CH4(9) at 317 K, 1 atm would be kJ. This reaction is (reactant, product) favored under standard conditions at 317 K. Assume that AHⓇ and A Sº are independent of temperature. Submit Answer Retry Entire Group 9 more group attempts remaining For the reaction CH4(g) + H206) CH3CH2OH() AGⓇ =...
1. A degreasing agent, tetrachloroethylene, is produced in the reaction CH4(g) +4 HCl(g) +2 02(g) →...
1. A degreasing agent, tetrachloroethylene, is produced in the reaction CH4(g) +4 HCl(g) +2 02(g) → C2C14(1) + 4H2O(1) AH° (kJ/mol): 52.26 -92.31 - 285.8 a) determine AH°for CCl4(1) AH' - 878.5 kJ a) AH° for C,CL(1) = b) How much heat (kJ) would be evolved when 7.5 kg of CH4(g) reacts completely (with stoichiometric amounts of HCl and O2)? b) heat, do = c) Using the equation for work done by/on the system; w=-P AV, calculate the amount of...
A chemist measures the energy change AH during the following reaction: 2 NO2(g) N204(9) AH=-55,3 kJ...
A chemist measures the energy change AH during the following reaction: 2 NO2(g) N204(9) AH=-55,3 kJ Use the information to answer the following questions. This reaction is... Suppose 36.3 g of NO, react. endothermic. exothermic Yes, absorbed. Yes, released No. х Will any heat be released or absorbed? If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Round your answer to 3 significant digits.
Consider the following reaction. CH4(g) + 2 O2(g) - CO2(g) + 2 H20(1) AH = -891...
Consider the following reaction. CH4(g) + 2 O2(g) - CO2(g) + 2 H20(1) AH = -891 kJ Calculate the enthalpy change for each of the following cases. (a) 2.00 g methane is burned in excess oxygen. Гk (b) 2.00 x 103 L methane gas at 743 torr and 25°C is burned in excess oxygen.
Calculate AH® for the following: rxn CH4(8) + Cl2(g) → CCl4(!) + HCl(g) [unbalanced] -139 kJ/mol AH (CH4®= -74.87 kJ/mol a CCl4@)) = -96.0 kJ/mol AHCC140] =-139 kJ/mol AH [HCI@)) =-92.31 kJ/mol AH [HCl(aq)] =-167.46 kJ/mol Ahº [C1()] = 121.0 kJ/mol
A chemist measures the energy change AH during the following reaction: CH4(9)+202(9) + CO2(9)+2H2O(1) AH= -882. kJ Use the information to answer the following questions. This reaction is... ОО endothermic. exothermic. Yes, absorbed. Yes, released. Suppose 33.5 g of CH4 react. X 5 ? Will any heat be released or absorbed? No. If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Round your answer...
given the following thermochemical equation detailing the
combustion of methane (CH4) determine the amount of energy released
when 1.563 mol of methane undergoes combustion
Given the following thermochemical equation 14. detailing the combustion of methane (CH4) CH g)+ 202(g) CO2(g) + 2H20(g) 1.563 determine the amount of energy released when 1.563 mol of methane undergoes combustion. AH=-802kJ/mol CH a. 1.95 x d. 1250 kJ b. 3,12x 10 kJ e. 2.01 x 10' kJ c. 453 kJ
CH4(g) + 2O2(g), AH° = 803 kJ which of the following For the following reaction, CO2(g) + 2H2O(g) = will increase K? Select one: O a. increase the temperature of system O b. none of the above O c. decrease number of moles of methane O d. all of the above O e increase volume of system
A chemist measures the energy change AH during the following reaction: AH=-2220. kJ CH (0)+50 (g) 3 CO(g)+4H,O(1) Use the information to answer the following questions. This reaction is... endothermic. exothermic. Yes, absorbed. Yes, released Suppose 73.5 g of CHg react. x 6 ? Will any heat be released or absorbed? No. If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Round your answer...
For the reaction CH_(g) + H2O(g) +3H2(g) + CO(g) AH° = 206.1 kJ and AS° = 214.7 J/K The standard free energy change for the reaction of 1.73 moles of CH4(9) at 317 K, 1 atm would be kJ. This reaction is (reactant, product) favored under standard conditions at 317 K. Assume that AHⓇ and A Sº are independent of temperature. Submit Answer Retry Entire Group 9 more group attempts remaining For the reaction CH4(g) + H206) CH3CH2OH() AGⓇ =...
1. A degreasing agent, tetrachloroethylene, is produced in the reaction CH4(g) +4 HCl(g) +2 02(g) → C2C14(1) + 4H2O(1) AH° (kJ/mol): 52.26 -92.31 - 285.8 a) determine AH°for CCl4(1) AH' - 878.5 kJ a) AH° for C,CL(1) = b) How much heat (kJ) would be evolved when 7.5 kg of CH4(g) reacts completely (with stoichiometric amounts of HCl and O2)? b) heat, do = c) Using the equation for work done by/on the system; w=-P AV, calculate the amount of...
A chemist measures the energy change AH during the following reaction: 2 NO2(g) N204(9) AH=-55,3 kJ Use the information to answer the following questions. This reaction is... Suppose 36.3 g of NO, react. endothermic. exothermic Yes, absorbed. Yes, released No. х Will any heat be released or absorbed? If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Round your answer to 3 significant digits.
Consider the following reaction. CH4(g) + 2 O2(g) - CO2(g) + 2 H20(1) AH = -891 kJ Calculate the enthalpy change for each of the following cases. (a) 2.00 g methane is burned in excess oxygen. Гk (b) 2.00 x 103 L methane gas at 743 torr and 25°C is burned in excess oxygen.
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