a)in the Bohr model of the hydrogen atom, the speed of the electron is approxima

Question

a)in the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.21E6 m/s^2
find the central force acting on the electron as it revolves in a circular orbit of radius 4.75E-11 m. Answer in units of N.
b) find the centripetal acceleration of the electron. answer in units of m/s^2.
c) a container of volume 0.4 m^3 contains 3.3 mol of argon gas at 49°C. Assuming argon behaves as an ideal gas, find the total energy of this gas. The value of gas constant is. 8.31451 J/mol*K
Answer in units of J.

What is the tension in the cord connected to the 8.7 kg block? Answer in units of N. In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.21 times 106 m/s. Find the central force acting on the electron as it revolves in a circular orbit of radius 4.75 times 10-11 m.Answer in units of N. Find the centripetal acceleration of the elec-tron. Answer in units of m/s2. Assuming argon behaves as an ideal gas, find the total internal energy of this gas. The value of gas constant is 8.31451 J/mol middot K. Answer in units of J.

Explanation / Answer

a:

central force = m*v^2 / r

central force = 9.1*10^(-31) * ( 2.26*10^6 )^2 / 4.75*10^(-11) = 9.7851 *10^9 N

b:

centriprital acceleration = central force / mass of electron = 1.0753 * 10^(23) m/s^2

c:

energy = (3/2)*n*R*T = 1.5* 3.3* 8.31451*(273+49) jules

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