Calculate urms, in m/s, for H₂(g) molecules at 30°C.

Question

Quizplus · Accepted Answer

The root-mean-square velocity (urms) of gas molecules at a given temperature is calculated using the following formula: urms = √((3RT)/M) where R is the gas constant, T is the temperature in Kelvin, and M is the molar mass of the gas. For H₂(g), the molar mass is approximately 34 g/mol. Using this value and assuming standard pressure, we can calculate the urms at 30°C (or 303 K): urms = √((3RT)/M) = √((3*8.31 J/mol*K*303 K)/(34 g/mol)) = 1.94 × 10^3 m/s Thus, the correct answer is D) 1.94 × 10^3 m/s, which is equivalent to 1.94 × 10^13 nm/s.

Calculate Urms, in M/s, for H2(g) Molecules at 30°C

Calculate Urms, in M/s, for H₂(g) Molecules at 30°C