1 Cal 30. Enthalpy is a state function. T or F 31. The kinetic energy of an object having a mass of 59.0 kg and a veloci

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1 Cal 30 Enthalpy Is A State Function T Or F 31 The Kinetic Energy Of An Object Having A Mass Of 59 0 Kg And A Veloci 1 (70.48 KiB) Viewed 57 times

1 Cal 30. Enthalpy is a state function. T or F 31. The kinetic energy of an object having a mass of 59.0 kg and a velocity of 26.8 m/s is: d. 2.1x104 kgm²/s² a. 2.12x10¹ J b. 2.12x10 kgm²/s² e, a and b c. 2.1x10 J f. c and d 32. The value of heat for an exothermic reaction would be greater than zero. Tor F 33. Calculate the quantity of heat required (q) to raise the temperature of a 0.222 g sample of Cu by 5.0°C given a specific heat of 0.384 J/g°C. d. 0.426 J e. 0.43 J a. 0.043 J b. 8.6 J c. 0.43 kJ 34. Standard enthalpy of formation refers to the enthalpy change for the formation of 1 mole of any substance from its elements at 1 atm. of pressure and 25°C. T or F 35. Wavelength is defined as the distance between any two identical points on adjacent waves. Tor F 36. The frequency of a wave having a wavelength of 469 nm is: a. 6.39x10¹4-¹ c. 6.39x105 S¹ b. 6.40x10¹4 ¹ d. 6.39x105 S¹ 37. The energy of a photon of light having a frequency of 3.23x10¹5s¹¹ is: a. 2.05x10-4⁹ J c. 2.14x10-18 J b. 2.1x10-4⁹ J d. 2.14x10-18 -1 38. A line spectrum shows: "a. the emission of all wavelengths of light b. the emission of certain wavelengths of light c. the emission of all wavelengths in the visible spectrum of light d. the emission of all wavelengths outside of the visible spectrum of light 39. What is the energy of light absorbed when an electron in a hydrogen atom transitions from the n=2 to n-3 energy level? a. 3.03x10-19 J b. -3.026x10-19 J 40. Light is a higher value of n. 41. The value(s) of / when n-3 is (are): a. 0, 1 and 2 b. 0, 1, 2 and 3 Ja c. -3.026x10-19 J d. 3.026x10-19 J when an electron transitions from a lower value of n to T c. +3, +2, +1, 0, -1, -2, -3 d. 2