Physical Chemistry Answers

The intensity distribution of solar radiation peaks at a wavelength of approximately 500 nm. Assuming the Sun radiates like a black body, calculate the flux of photons leaving the sun in W/m2.

The intensity distribution of solar radiation peaks at a wavelength of approximately 500 nm. Assuming the Sun radiates like a black body, calculate the flux of photons leaving the sun in W/m2.

Calculate the quantities for ideal gas given below.
(R=0.082 L atm mol-1 K-1)
i. The absolute temperature of 21 g Nitrogen gas at which gas occupies 164 mL at 6 atm.
ii. The pressure in atm, if 8.25 X 10 -2 mole gas occupies a volume of 255 mL at 115ºC.
iii. The molecular weight of 12.3 g gas if 5.49 L at 35ºC have pressure 11.25 atm.
iv. A closed gas cylinder contains 0.500 mole H2, 0.300 mole O2, 1.200 mole CO2 at 25 °C and pressures 2.00 atm. Calculate the volume of the cylinder.
v. Calculate the partial pressure of O2 inside the cylinder in question (iv).

The intensity distribution of solar radiation peaks at a wavelength of approximately 500 nm. Assuming the Sun radiates like a black body, calculate the flux of photons leaving the sun in W/m2.

What would be the pH of 1L of a carbonate buffer of pH 7.57 if the ASA tablet used in this experiment

Plot the rotational partition function of N2​ as a function of temperature from 10 to 300 K. At what temperature (in K) does the approximation of qr=T/Θr​ result in less than 1% error?

The intensity distribution of solar radiation peaks at a wavelength of approximately 500 nm. Assuming the Sun radiates like a black body, calculate the flux of photons leaving the sun in W/m2.

You just competed in a track meet and you ran the 1500 m race in 459 s. What was your average speed in miles per hour?