The is the energy difference between reactants and products in a chemical

# The is the energy difference between reactants and

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11) The __________ is the energy difference between reactants and products in a chemical reaction.A) transition energyB) activation energyC) product energyD) overall energyE) heat of reactionAnswer: E12) The __________ is the minimum energy needed for a chemical reaction to begin.13) In the kinetic molecular theory of gas behavior, the assumption is made that gas molecules
14) According to the kinetic theory of gases, a gas can be compressed much more than a liquid orsolid because15) A 5.00-L tank contains helium gas at 1.50 atm. What is the pressure of the gas in mmHg?A) 1.50 mmHgB) 507 mmHgC) 760 mmHgD) 1140 mmHgE) 7.5 mmHgAnswer: D1.50 atm X 760 mm Hg = 1140 mmHg1 atm16) As you rise higher in Earth's atmosphere, the atmospheric pressure
17) Which of the following correctly describes the process of inspiration (air entering the lungs)?18) The volume of a gas with a pressure of 1.2 atm increases from 1.0 L to 4.0 L. What is the final pressure of the gas, assuming constant temperature?P1V1= P2V2T1T2T1= T2 (constant temperature; we can ignore in equation)P2= P1V1= 1.2 atm X 1.0 L = 0.30 atmV2 4.0L19) The pressure of 5.0 L of gas increases from 1.50 atm to 1240 mmHg. What is the final volume of the gas, assuming constant temperature?
A) 4100 LB) 5.0 LC) 0.0060 LD) 5.4 LE) 4.6 LAnswer: EP1V1= P2V2 T1T2T1= T2 (constant temperature; we can ignore in equation)1240 mmHg = 1.63 atm V2= P1V1T2= 1.50 atm X 5.0 L= 4.6 atmT1P21.63 atm

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• Fall '10
• LingChen

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