Câu 8: Chọn phương án đúng: Cho phản ứng : N2 (k) + O2 (k) = 2NO (k) có
0 H298
= +180,8 kJ.

Ở điều kiện tiêu chuẩn ở 25oC , khi thu được 1 mol khí NO từ phản ứng trên thì:

6

A. Lượng nhiệt tỏa ra là 180,8 kJ. B. Lượng nhiệt thu vào là 180,8 kJ.
C. Lượng nhiệt tỏa ra là 90,4 kJ. D. Lượng nhiệt thu vào là 90,4

In which environment would primary succession occur? a forest with a few remaining trees after a recent wildfire an area of exposed rock after a glacier melts away beach that is exposed to the air at low tide an abandoned baseball field in a small town

In which region is the substance in both the solid phase and the liquid phase? 1 2. 3 4 mark this and return save and exit next

For questions 1 and 2, consider the following experimental data.hydrogen emission lines were detected at the following wavelengths (in nm): 121.6102.697.395.093.8question 1use the electromagnetic radiation classifications below and figure 1-1 in the introductory information for this lab (in the lab manual) to determine the nf value for the experimental data provided? wavelength, ? (nm) 650 700 550 600 400 450 500 visible spectrum wavelength, ? (m) 11 10 3 10 10 10 8 10 5 10 10 -10 10 9 10 10 10 10 -12 10 microwave radio infrared x-ray ultraviolet gamma 1020 1019 1018 1 1016 015 1014 01 12 109108 frequency, v (hz)a.1b. 2c. 3d. 4e. 5question 2using the data for the emission line with the longest wavelength, the known value of nf (from question 1 in this prelab), and the value of ni (deduced from the ? and nf values) calculate the rydberg constant for hydrogen (rh) in units of m-1.a) 1.097 x 10-11 m-1b) 5.921 x 107 m-1c) 1.097 x 10-2 m-1d) 9.252 x 106 m-1e) 1.097 x 107 m-1